- Timestamp:
- 03/06/06 11:51:04 (19 years ago)
- Location:
- trunk/python
- Files:
-
- 4 edited
Legend:
- Unmodified
- Added
- Removed
-
trunk/python/__init__.py
r796 r876 250 250 251 251 from asapfitter import * 252 from asapreader import reader252 #from asapreader import reader 253 253 254 254 from asapmath import * 255 from scantable import *256 from asaplinefind import *257 from asapfit import *255 #from scantable import * 256 #from asaplinefind import * 257 #from asapfit import * 258 258 259 259 from numarray import logical_and as mask_and … … 261 261 from numarray import logical_not as mask_not 262 262 263 if rcParams['useplotter']:264 from asapplotter import *265 gui = os.environ.has_key('DISPLAY') and rcParams['plotter.gui']266 plotter = asapplotter(gui)267 del gui263 # if rcParams['useplotter']: 264 # from asapplotter import * 265 # gui = os.environ.has_key('DISPLAY') and rcParams['plotter.gui'] 266 # plotter = asapplotter(gui) 267 # del gui 268 268 269 269 __date__ = '$Date$'.split()[1] … … 286 286 copy - returns a copy of a scan 287 287 get_scan - gets a specific scan out of a scantable 288 (by name or number) 288 (by name or number) [deprecated] 289 289 summary - print info about the scantable contents 290 set_cursor - set a specific Beam/IF/Pol 'cursor' for291 further use292 get_cursor - print out the current cursor position293 290 stats - get specified statistic of the spectra in 294 291 the scantable … … 301 298 get_elevation - get the elevation of the scans 302 299 get_parangle - get the parallactic angle of the scans 303 get_unit - get the curr nt unit300 get_unit - get the current unit 304 301 set_unit - set the abcissa unit to be used from this 305 302 point on -
trunk/python/asapfitter.py
r794 r876 130 130 from asap import asaplog 131 131 asaplog.push("Fitting:") 132 self.selection = self.data.get_cursor() 132 out = "Scan[%d] Beam[%d] IF[%d] Pol[%d] Cycle[%d]" (self.data.getscan(i),self.data.getbeam(i),self.data.getif(i),self.data.getpol(i), self.data.getcycle(i)) 133 asaplog.push(out) 133 134 self.fitter.setdata(self.x, self.y, self.mask) 134 135 if self.fitfunc == 'gauss': … … 432 433 print_log() 433 434 434 def auto_fit(self, insitu=None , allaxes=True):435 def auto_fit(self, insitu=None): 435 436 """ 436 437 Return a scan where the function is applied to all rows for … … 451 452 else: 452 453 scan = self.data 453 sel = scan.get_cursor()454 454 rows = range(scan.nrow()) 455 455 from asap import asaplog 456 if allaxes: 457 for i in range(scan.nbeam()): 458 scan.setbeam(i) 459 for j in range(scan.nif()): 460 scan.setif(j) 461 for k in range(scan.npol()): 462 scan.setpol(k) 463 asaplog.push("Fitting:") 464 out = 'Beam[%d], IF[%d], Pol[%d]' % (i,j,k) 465 asaplog.push(out) 466 for iRow in rows: 467 self.x = scan._getabcissa(iRow) 468 self.y = scan._getspectrum(iRow) 469 self.data = None 470 self.fit() 471 x = self.get_parameters() 472 scan._setspectrum(self.fitter.getresidual(),iRow) 473 else: 474 asaplog.push("Fitting:") 475 out = 'Beam[%d], IF[%d], Pol[%d]' % sel 456 asaplog.push("Fitting:") 457 for r in rows: 458 out = "Scan[%d] Beam[%d] IF[%d] Pol[%d] Cycle[%d]" % (self.data.getscan(r),self.data.getbeam(r),self.data.getif(r),self.data.getpol(r), self.data.getcycle(r)) 476 459 asaplog.push(out) 477 for iRow in rows: 478 self.x = scan._getabcissa(iRow) 479 self.y = scan._getspectrum(iRow) 480 self.data = None 481 self.fit() 482 x = self.get_parameters() 483 scan._setspectrum(self.fitter.getresidual(),iRow) 484 485 scan.set_cursor(sel[0],sel[1],sel[2]) 460 self.x = scan._getabcissa(r) 461 self.y = scan._getspectrum(r) 462 self.data = None 463 self.fit() 464 x = self.get_parameters() 465 scan._setspectrum(self.fitter.getresidual(),iRow) 486 466 print_log() 487 if not insitu:488 return scan 467 return scan 468 -
trunk/python/asapmath.py
r720 r876 45 45 # need special formatting her for history... 46 46 47 from asap._asap import average as _av 47 from asap._asap import stmath 48 stm = stmath() 48 49 for s in lst: 49 50 if not isinstance(s,scantable): … … 54 55 else: 55 56 raise TypeError(msg) 56 s = scantable(_av(lst, mask, scanAv, weight)) 57 if scanAv: scanAv = "SCAN" 58 else: scanAv = "NONE" 59 s = scantable(stm._average(lst, mask, weight, scanAv, False)) 57 60 s._add_history("average_time",varlist) 58 61 print_log() 59 62 return s 60 63 61 def quotient(source, reference, preserve=True):62 """63 Return the quotient of a 'source' (signal) scan and a 'reference' scan.64 The reference can have just one row, even if the signal has many. Otherwise65 they must have the same number of rows.66 The cursor of the output scan is set to 067 Parameters:68 source: the 'on' scan69 reference: the 'off' scan70 preserve: you can preserve (default) the continuum or71 remove it. The equations used are72 preserve: Output = Toff * (on/off) - Toff73 remove: Output = Toff * (on/off) - Ton74 """75 varlist = vars()76 from asap._asap import quotient as _quot77 s = scantable(_quot(source, reference, preserve))78 s._add_history("quotient",varlist)79 print_log()80 return s64 # def quotient(source, reference, preserve=True): 65 # """ 66 # Return the quotient of a 'source' (signal) scan and a 'reference' scan. 67 # The reference can have just one row, even if the signal has many. Otherwise 68 # they must have the same number of rows. 69 # The cursor of the output scan is set to 0 70 # Parameters: 71 # source: the 'on' scan 72 # reference: the 'off' scan 73 # preserve: you can preserve (default) the continuum or 74 # remove it. The equations used are 75 # preserve: Output = Toff * (on/off) - Toff 76 # remove: Output = Toff * (on/off) - Ton 77 # """ 78 # varlist = vars() 79 # from asap._asap import quotient as _quot 80 # s = scantable(_quot(source, reference, preserve)) 81 # s._add_history("quotient",varlist) 82 # print_log() 83 # return s 81 84 82 85 def simple_math(left, right, op='add', tsys=True): … … 94 97 """ 95 98 varlist = vars() 99 print "Not yet available in asap" 100 return 96 101 if not isinstance(left,scantable) and not isinstance(right,scantable): 97 102 msg = "Please provide two scantables as input" -
trunk/python/scantable.py
r794 r876 1 from asap._asap import sdtable1 from asap._asap import Scantable 2 2 from asap import rcParams 3 3 from asap import print_log … … 5 5 import sys 6 6 7 class scantable( sdtable):7 class scantable(Scantable): 8 8 """ 9 9 The ASAP container for scans … … 33 33 34 34 varlist = vars() 35 self._p = None 35 from asap._asap import stmath 36 self._math = stmath() 36 37 from asap import asaplog 37 if isinstance(filename, sdtable):38 sdtable.__init__(self, filename)38 if isinstance(filename, Scantable): 39 Scantable.__init__(self, filename) 39 40 if unit is not None: 40 41 self.set_fluxunit(unit) … … 52 53 # crude check if asap table 53 54 if os.path.exists(filename+'/table.info'): 54 sdtable.__init__(self, filename)55 Scantable.__init__(self, filename, "memory") 55 56 if unit is not None: 56 57 self.set_fluxunit(unit) … … 63 64 raise IOError(msg) 64 65 else: 65 from asap._asap import s dreader66 from asap._asap import stfiller 66 67 ifSel = -1 67 68 beamSel = -1 68 r = s dreader()69 r = stfiller() 69 70 r._open(filename,ifSel,beamSel) 70 71 asaplog.push('Importing data...') 71 72 print_log() 72 r._read( [-1])73 r._read() 73 74 tbl = r._getdata() 74 75 if unit is not None: 75 76 tbl.set_fluxunit(unit) 76 77 if average: 77 from asap._asap import average as _av78 78 asaplog.push('Auto averaging integrations...') 79 79 print_log() 80 tbl2 = _av((tbl,),(),True,'none')81 sdtable.__init__(self,tbl2)80 tbl2 = self._math._average((tbl,),(),'NONE','SCAN', False) 81 Scantable.__init__(self,tbl2) 82 82 del tbl2 83 83 else: 84 sdtable.__init__(self,tbl)84 Scantable.__init__(self,tbl) 85 85 del r,tbl 86 86 self._add_history("scantable", varlist) 87 87 print_log() 88 88 89 def save(self, name=None, format=None, stokes=False,overwrite=False):89 def save(self, name=None, format=None, overwrite=False): 90 90 """ 91 91 Store the scantable on disk. This can be an asap (aips++) Table, SDFITS, … … 104 104 'MS2' (saves as an aips++ 105 105 MeasurementSet V2) 106 stokes: Convert to Stokes parameters (only available107 currently with FITS and ASCII formats.108 Default is False.109 106 overwrite: If the file should be overwritten if it exists. 110 107 The default False is to return with warning … … 135 132 self._save(name) 136 133 else: 137 from asap._asap import sdwriter as _sw 138 w = _sw(format2) 139 w.write(self, name, stokes) 134 print "NYI" 135 # from asap._asap import sdwriter as _sw 136 # w = _sw(format2) 137 # w.write(self, name, stokes) 140 138 141 139 print_log() … … 150 148 copiedscan = scan.copy() 151 149 """ 152 sd = scantable( sdtable._copy(self))150 sd = scantable(Scantable._copy(self)) 153 151 return sd 154 152 … … 177 175 178 176 try: 177 bsel = self._getselection() 178 sel = asap._asap.Selector() 179 179 if type(scanid) is str: 180 s = sdtable._getsource(self,scanid) 181 return scantable(s) 180 sel._setname() 181 self._setselection(sel) 182 scopy = self._copy() 183 self._setselection(bsel) 184 return scantable(scopy) 182 185 elif type(scanid) is int: 183 s = sdtable._getscan(self,[scanid]) 184 return scantable(s) 186 sel._setscans([scanid]) 187 self._setselection(sel) 188 scopy = self._copy() 189 self._setselection(bsel) 190 return scantable(scopy) 185 191 elif type(scanid) is list: 186 s = sdtable._getscan(self,scanid) 187 return scantable(s) 192 sel._setscans(scanid) 193 self._setselection(sel) 194 scopy = self._copy() 195 self._setselection(bsel) 196 return scantable(scopy) 188 197 else: 189 198 msg = "Illegal scanid type, use 'int' or 'list' if ints." … … 197 206 198 207 def __str__(self): 199 return sdtable._summary(self,True)200 201 def summary(self, filename=None, verbose=None):208 return Scantable._summary(self,True) 209 210 def summary(self, filename=None, verbose=None): 202 211 """ 203 212 Print a summary of the contents of this scantable. … … 208 217 The default (False) is taken from .asaprc 209 218 """ 210 info = sdtable._summary(self, verbose)219 info = Scantable._summary(self, verbose) 211 220 if verbose is None: verbose = rcParams['scantable.verbosesummary'] 212 221 if filename is not None: … … 244 253 # if=0, pol=1 245 254 """ 246 varlist = vars() 247 self.setbeam(beam) 248 self.setpol(pol) 249 self.setif(IF) 250 self._add_history("set_cursor",varlist) 255 print "DEPRECATED" 256 varlist = vars() 257 sel = asap._asap.Selector() 258 sel._setbeams([beam]) 259 sel._setpols([pol]) 260 sel._setifs([IF]) 261 self._add_history("set_cursor", varlist) 251 262 return 252 263 … … 261 272 none 262 273 """ 263 i = self.getbeam() 264 j = self.getif() 265 k = self.getpol() 274 print "DEPRECATED" 275 sel = self._getselection() 276 i = sel.getbeams()[0] 277 j = sel.getifs()[0] 278 k = sel.getpols()[0] 266 279 from asap import asaplog 267 280 out = "--------------------------------------------------\n" … … 273 286 return i,j,k 274 287 275 def stats(self, stat='stddev', mask=None , allaxes=None):288 def stats(self, stat='stddev', mask=None): 276 289 """ 277 290 Determine the specified statistic of the current beam/if/pol … … 283 296 mask: an optional mask specifying where the statistic 284 297 should be determined. 285 allaxes: if True apply to all spectra. Otherwise286 apply only to the selected (beam/pol/if)spectra only.287 The default is taken from .asaprc (True if none)288 298 Example: 289 299 scan.set_unit('channel') … … 291 301 scan.stats(stat='mean', mask=m) 292 302 """ 293 if allaxes is None: allaxes = rcParams['scantable.allaxes']294 from asap._asap import stats as _stats295 303 from numarray import array,zeros,Float 296 304 if mask == None: 297 mask = ones(self.nchan())305 mask = [] 298 306 axes = ['Beam','IF','Pol','Time'] 299 300 beamSel,IFSel,polSel = (self.getbeam(),self.getif(),self.getpol()) 301 if allaxes: 302 n = self.nbeam()*self.nif()*self.npol()*self.nrow() 303 shp = [self.nbeam(),self.nif(),self.npol(),self.nrow()] 304 arr = array(zeros(n),shape=shp,type=Float) 305 306 for i in range(self.nbeam()): 307 self.setbeam(i) 308 for j in range(self.nif()): 309 self.setif(j) 310 for k in range(self.npol()): 311 self.setpol(k) 312 arr[i,j,k,:] = _stats(self,mask,stat,-1) 313 retval = {'axes': axes, 'data': arr, 'cursor':None} 314 tm = [self._gettime(val) for val in range(self.nrow())] 315 if rcParams['verbose']: 316 self._print_values(retval,stat,tm) 317 self.setbeam(beamSel) 318 self.setif(IFSel) 319 self.setpol(polSel) 320 return retval 321 322 else: 323 statval = _stats(self,mask,stat,-1) 324 out = '' 325 for l in range(self.nrow()): 326 tm = self._gettime(l) 327 out += 'Time[%s]:\n' % (tm) 328 if self.nbeam() > 1: out += ' Beam[%d] ' % (beamSel) 329 if self.nif() > 1: out += ' IF[%d] ' % (IFSel) 330 if self.npol() > 1: out += ' Pol[%d] ' % (polSel) 331 out += '= %3.3f\n' % (statval[l]) 332 out += "--------------------------------------------------\n" 333 334 if rcParams['verbose']: 335 print "--------------------------------------------------" 336 print " ",stat 337 print "--------------------------------------------------" 338 print out 339 retval = {'axes': axes, 'data': array(statval), 'cursor':(i,j,k)} 340 return retval 341 342 def stddev(self,mask=None, allaxes=None): 307 if not self._check_ifs(): 308 raise ValueError("Cannot apply mask as the IFs have different number of channels" 309 "Please use setselection() to select individual IFs") 310 311 statvals = self._math._stats(self, mask, stat) 312 out = '' 313 axes = [] 314 for i in range(self.nrow()): 315 axis = [] 316 axis.append(self.getscan(i)) 317 axis.append(self.getbeam(i)) 318 axis.append(self.getif(i)) 319 axis.append(self.getpol(i)) 320 axis.append(self.getcycle(i)) 321 axes.append(axis) 322 tm = self._gettime(i) 323 src = self._getsourcename(i) 324 out += 'Scan[%d] (%s) ' % (axis[0], src) 325 out += 'Time[%s]:\n' % (tm) 326 if self.nbeam(-1) > 1: out += ' Beam[%d] ' % (axis[1]) 327 if self.nif(-1) > 1: out += ' IF[%d] ' % (axis[2]) 328 if self.npol(-1) > 1: out += ' Pol[%d] ' % (axis[3]) 329 out += '= %3.3f\n' % (statvals[i]) 330 out += "--------------------------------------------------\n" 331 332 if rcParams['verbose']: 333 print "--------------------------------------------------" 334 print " ",stat 335 print "--------------------------------------------------" 336 print out 337 retval = { 'axesnames': ['scanno','beamno','ifno','polno','cycleno'], 338 'axes' : axes, 339 'data': statvals} 340 return retval 341 342 def stddev(self,mask=None): 343 343 """ 344 344 Determine the standard deviation of the current beam/if/pol … … 348 348 mask: an optional mask specifying where the standard 349 349 deviation should be determined. 350 allaxes: optional flag to show all or a cursor selected351 spectrum of Beam/IF/Pol. Default is all or taken352 from .asaprc353 350 354 351 Example: … … 357 354 scan.stddev(mask=m) 358 355 """ 359 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 360 return self.stats(stat='stddev',mask=mask, allaxes=allaxes); 361 362 def get_tsys(self, allaxes=None): 356 return self.stats(stat='stddev',mask=mask); 357 358 def get_tsys(self): 363 359 """ 364 360 Return the System temperatures. 365 361 Parameters: 366 allaxes: if True apply to all spectra. Otherwise 367 apply only to the selected (beam/pol/if)spectra only. 368 The default is taken from .asaprc (True if none) 362 369 363 Returns: 370 a list of Tsys values. 371 """ 372 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 373 from numarray import array,zeros,Float 374 axes = ['Beam','IF','Pol','Time'] 375 376 if allaxes: 377 n = self.nbeam()*self.nif()*self.npol()*self.nrow() 378 shp = [self.nbeam(),self.nif(),self.npol(),self.nrow()] 379 arr = array(zeros(n),shape=shp,type=Float) 380 381 for i in range(self.nbeam()): 382 self.setbeam(i) 383 for j in range(self.nif()): 384 self.setif(j) 385 for k in range(self.npol()): 386 self.setpol(k) 387 arr[i,j,k,:] = self._gettsys() 388 retval = {'axes': axes, 'data': arr, 'cursor':None} 389 tm = [self._gettime(val) for val in range(self.nrow())] 390 if rcParams['verbose']: 391 self._print_values(retval,'Tsys',tm) 392 return retval 393 394 else: 395 i,j,k = (self.getbeam(),self.getif(),self.getpol()) 396 statval = self._gettsys() 397 out = '' 398 for l in range(self.nrow()): 399 tm = self._gettime(l) 400 out += 'Time[%s]:\n' % (tm) 401 if self.nbeam() > 1: out += ' Beam[%d] ' % (i) 402 if self.nif() > 1: out += ' IF[%d] ' % (j) 403 if self.npol() > 1: out += ' Pol[%d] ' % (k) 404 out += '= %3.3f\n' % (statval[l]) 405 out += "--------------------------------------------------\n" 406 407 if rcParams['verbose']: 408 print "--------------------------------------------------" 409 print " TSys" 410 print "--------------------------------------------------" 411 print out 412 retval = {'axes': axes, 'data': array(statval), 'cursor':(i,j,k)} 413 return retval 364 a list of Tsys values for the current selection 365 """ 366 367 return self._row_callback(self._gettsys, "Tsys") 368 369 def _row_callback(self, callback, label): 370 axes = [] 371 axesnames = ['scanno','beamno','ifno','polno','cycleno'] 372 out = "" 373 outvec =[] 374 for i in range(self.nrow()): 375 axis = [] 376 axis.append(self.getscan(i)) 377 axis.append(self.getbeam(i)) 378 axis.append(self.getif(i)) 379 axis.append(self.getpol(i)) 380 axis.append(self.getcycle(i)) 381 axes.append(axis) 382 tm = self._gettime(i) 383 src = self._getsourcename(i) 384 out += 'Scan[%d] (%s) ' % (axis[0], src) 385 out += 'Time[%s]:\n' % (tm) 386 if self.nbeam(-1) > 1: out += ' Beam[%d] ' % (axis[1]) 387 if self.nif(-1) > 1: out += ' IF[%d] ' % (axis[2]) 388 if self.npol(-1) > 1: out += ' Pol[%d] ' % (axis[3]) 389 outvec.append(callback(i)) 390 out += '= %3.3f\n' % (outvec[i]) 391 out += "--------------------------------------------------\n" 392 if rcParams['verbose']: 393 print "--------------------------------------------------" 394 print " %s" % (label) 395 print "--------------------------------------------------" 396 print out 397 retval = {'axesnames': axesnames, 'axes': axes, 'data': outvec} 398 return retval 399 414 400 415 401 def get_time(self, row=-1): … … 508 494 inf[0] = unit 509 495 self._setcoordinfo(inf) 510 if self._p: self.plot()511 496 self._add_history("set_unit",varlist) 512 497 … … 532 517 inf[2] = doppler 533 518 self._setcoordinfo(inf) 534 if self._p: self.plot()535 519 self._add_history("set_doppler",vars()) 536 520 print_log() … … 551 535 'GEO','GALACTO','LGROUP','CMB'] 552 536 553 if frame in valid:537 if 1:#frame in valid: 554 538 inf = list(self._getcoordinfo()) 555 539 inf[1] = frame … … 629 613 from asap import asaplog 630 614 msg = "The current mask window unit is %s" % u 615 if not _check_ifs(): 616 msg += "\nThis mask is only valid for IF=%d" % (self.getif(i)) 631 617 asaplog.push(msg) 632 618 n = self.nchan() … … 659 645 return list(self._getrestfreqs()) 660 646 661 def lines(self): 662 """ 663 Print the list of known spectral lines 664 """ 665 l = sdtable._lines(self) 666 if rcParams['verbose']: 667 print l 668 else: 669 return l 670 671 def set_restfreqs(self, freqs=None, unit='Hz', lines=None, source=None, 672 theif=None): 673 """ 674 Select the restfrequency for the specified source and IF OR 675 replace for all IFs. If the 'freqs' argument holds a scalar, 676 then that rest frequency will be applied to the selected 677 data (and added to the list of available rest frequencies). 678 In this way, you can set a rest frequency for each 679 source and IF combination. If the 'freqs' argument holds 680 a vector, then it MUST be of length the number of IFs 681 (and the available restfrequencies will be replaced by 682 this vector). In this case, *all* data ('source' and 683 'theif' are ignored) have the restfrequency set per IF according 684 to the corresponding value you give in the 'freqs' vector. 685 E.g. 'freqs=[1e9,2e9]' would mean IF 0 gets restfreq 1e9 and 686 IF 1 gets restfreq 2e9. 687 688 You can also specify the frequencies via known line names 689 in the argument 'lines'. Use 'freqs' or 'lines'. 'freqs' 690 takes precedence. See the list of known names via function 691 scantable.lines() 692 Parameters: 693 freqs: list of rest frequencies 694 unit: unit for rest frequency (default 'Hz') 695 lines: list of known spectral lines names (alternative to freqs). 696 See possible list via scantable.lines() 697 source: Source name (blank means all) 698 theif: IF (-1 means all) 699 Example: 700 scan.set_restfreqs(freqs=1.4e9, source='NGC253', theif=2) 701 scan.set_restfreqs(freqs=[1.4e9,1.67e9]) 702 """ 703 varlist = vars() 704 if source is None: 705 source = "" 706 if theif is None: 707 theif = -1 708 t = type(freqs) 709 if t is int or t is float: 710 freqs = [freqs] 711 if freqs is None: 712 freqs = [] 713 t = type(lines) 714 if t is str: 715 lines = [lines] 716 if lines is None: 717 lines = [] 718 sdtable._setrestfreqs(self, freqs, unit, lines, source, theif) 719 self._add_history("set_restfreqs", varlist) 720 721 722 723 def flag_spectrum(self, thebeam, theif, thepol): 724 """ 725 This flags a selected spectrum in the scan 'for good'. 726 USE WITH CARE - not reversible. 727 Use masks for non-permanent exclusion of channels. 728 Parameters: 729 thebeam,theif,thepol: all have to be explicitly 730 specified 731 Example: 732 scan.flag_spectrum(0,0,1) 733 flags the spectrum for Beam=0, IF=0, Pol=1 734 """ 735 if (thebeam < self.nbeam() and 736 theif < self.nif() and 737 thepol < self.npol()): 738 sdtable.setbeam(self, thebeam) 739 sdtable.setif(self, theif) 740 sdtable.setpol(self, thepol) 741 sdtable._flag(self) 742 self._add_history("flag_spectrum", vars()) 743 else: 744 print "Please specify a valid (Beam/IF/Pol)" 745 return 746 747 def _print_values(self, dat, label='', timestamps=[]): 748 d = dat['data'] 749 a = dat['axes'] 750 shp = d.getshape() 751 out = '' 752 for i in range(shp[3]): 753 out += '%s [%s]:\n' % (a[3],timestamps[i]) 754 t = d[:,:,:,i] 755 for j in range(shp[0]): 756 if shp[0] > 1: out += ' %s[%d] ' % (a[0],j) 757 for k in range(shp[1]): 758 if shp[1] > 1: out += ' %s[%d] ' % (a[1],k) 759 for l in range(shp[2]): 760 if shp[2] > 1: out += ' %s[%d] ' % (a[2],l) 761 out += '= %3.3f\n' % (t[j,k,l]) 762 out += "-"*80 763 out += "\n" 764 print "-"*80 765 print " ", label 766 print "-"*80 767 print out 647 648 # def set_restfreqs(self, freqs=None, unit='Hz', lines=None, source=None, 649 # theif=None): 650 # """ 651 # Select the restfrequency for the specified source and IF OR 652 # replace for all IFs. If the 'freqs' argument holds a scalar, 653 # then that rest frequency will be applied to the selected 654 # data (and added to the list of available rest frequencies). 655 # In this way, you can set a rest frequency for each 656 # source and IF combination. If the 'freqs' argument holds 657 # a vector, then it MUST be of length the number of IFs 658 # (and the available restfrequencies will be replaced by 659 # this vector). In this case, *all* data ('source' and 660 # 'theif' are ignored) have the restfrequency set per IF according 661 # to the corresponding value you give in the 'freqs' vector. 662 # E.g. 'freqs=[1e9,2e9]' would mean IF 0 gets restfreq 1e9 and 663 # IF 1 gets restfreq 2e9. 664 # 665 # You can also specify the frequencies via known line names 666 # in the argument 'lines'. Use 'freqs' or 'lines'. 'freqs' 667 # takes precedence. See the list of known names via function 668 # scantable.lines() 669 # Parameters: 670 # freqs: list of rest frequencies 671 # unit: unit for rest frequency (default 'Hz') 672 # lines: list of known spectral lines names (alternative to freqs). 673 # See possible list via scantable.lines() 674 # source: Source name (blank means all) 675 # theif: IF (-1 means all) 676 # Example: 677 # scan.set_restfreqs(freqs=1.4e9, source='NGC253', theif=2) 678 # scan.set_restfreqs(freqs=[1.4e9,1.67e9]) 679 # """ 680 # varlist = vars() 681 # if source is None: 682 # source = "" 683 # if theif is None: 684 # theif = -1 685 # t = type(freqs) 686 # if t is int or t is float: 687 # freqs = [freqs] 688 # if freqs is None: 689 # freqs = [] 690 # t = type(lines) 691 # if t is str: 692 # lines = [lines] 693 # if lines is None: 694 # lines = [] 695 # self._setrestfreqs(freqs, unit, lines, source, theif) 696 # self._add_history("set_restfreqs", varlist) 697 # 698 768 699 769 700 def history(self): … … 818 749 if weight is None: weight = 'tint' 819 750 if mask is None: mask = () 820 from asap._asap import average as _av 821 s = scantable(_av((self,), mask, scanav, weight)) 751 if scanav: 752 scanav = "SCAN" 753 else: 754 scanav = "NONE" 755 s = scantable(self._math._average((self,), mask, weight, scanav, False)) 822 756 s._add_history("average_time",varlist) 823 757 print_log() 824 758 return s 825 759 826 def convert_flux(self, jyperk=None, eta=None, d=None, insitu=None, 827 allaxes=None): 760 def convert_flux(self, jyperk=None, eta=None, d=None, insitu=None): 828 761 """ 829 762 Return a scan where all spectra are converted to either … … 844 777 The default is taken from .asaprc (True if none) 845 778 """ 846 if allaxes is None: allaxes = rcParams['scantable.allaxes']847 779 if insitu is None: insitu = rcParams['insitu'] 780 self._math._setinsitu(insitu) 848 781 varlist = vars() 849 782 if jyperk is None: jyperk = -1.0 850 783 if d is None: d = -1.0 851 784 if eta is None: eta = -1.0 852 if not insitu: 853 from asap._asap import convertflux as _convert 854 s = scantable(_convert(self, d, eta, jyperk, allaxes)) 855 s._add_history("convert_flux", varlist) 856 print_log() 857 return s 858 else: 859 from asap._asap import convertflux_insitu as _convert 860 _convert(self, d, eta, jyperk, allaxes) 861 self._add_history("convert_flux", varlist) 862 print_log() 863 return 864 865 def gain_el(self, poly=None, filename="", method="linear", 866 insitu=None, allaxes=None): 785 s = scantable(self._math._convertflux(self, d, eta, jyperk)) 786 s._add_history("convert_flux", varlist) 787 print_log() 788 if insitu: self._assign(s) 789 else: return s 790 791 def gain_el(self, poly=None, filename="", method="linear", insitu=None): 867 792 """ 868 793 Return a scan after applying a gain-elevation correction. … … 902 827 Otherwise, the scaling is done in-situ 903 828 The default is taken from .asaprc (False) 904 allaxes: If True apply to all spectra. Otherwise 905 apply only to the selected (beam/pol/if) spectra only 906 The default is taken from .asaprc (True if none) 907 """ 908 909 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 829 """ 830 910 831 if insitu is None: insitu = rcParams['insitu'] 832 self._math._setinsitu(insitu) 911 833 varlist = vars() 912 834 if poly is None: … … 914 836 from os.path import expandvars 915 837 filename = expandvars(filename) 916 if not insitu: 917 from asap._asap import gainel as _gainEl 918 s = scantable(_gainEl(self, poly, filename, method, allaxes)) 919 s._add_history("gain_el", varlist) 920 print_log() 921 return s 922 else: 923 from asap._asap import gainel_insitu as _gainEl 924 _gainEl(self, poly, filename, method, allaxes) 925 self._add_history("gain_el", varlist) 926 print_log() 927 return 838 s = scantable(self._math._gainel(self, poly, filename, method)) 839 s._add_history("gain_el", varlist) 840 print_log() 841 if insitu: self._assign(s) 842 else: return s 928 843 929 844 def freq_align(self, reftime=None, method='cubic', perif=False, … … 945 860 The default is taken from .asaprc (False) 946 861 """ 862 print "Not yet implemented" 863 return 947 864 if insitu is None: insitu = rcParams['insitu'] 865 self._math._setinsitu(insitu) 948 866 varlist = vars() 949 867 if reftime is None: reftime = '' 950 868 perfreqid = not perif 951 if not insitu: 952 from asap._asap import freq_align as _align 953 s = scantable(_align(self, reftime, method, perfreqid)) 954 s._add_history("freq_align", varlist) 955 print_log() 956 return s 957 else: 958 from asap._asap import freq_align_insitu as _align 959 _align(self, reftime, method, perfreqid) 960 self._add_history("freq_align", varlist) 961 print_log() 962 return 963 964 def opacity(self, tau, insitu=None, allaxes=None): 869 s = scantable(self._math._freqalign(self, reftime, method, perfreqid)) 870 s._add_history("freq_align", varlist) 871 print_log() 872 if insitu: self._assign(s) 873 else: return s 874 875 def opacity(self, tau, insitu=None): 965 876 """ 966 877 Apply an opacity correction. The data … … 973 884 Otherwise, the scaling is done in-situ 974 885 The default is taken from .asaprc (False) 975 allaxes: if True apply to all spectra. Otherwise 976 apply only to the selected (beam/pol/if)spectra only 977 The default is taken from .asaprc (True if none) 978 """ 979 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 886 """ 980 887 if insitu is None: insitu = rcParams['insitu'] 981 varlist = vars() 982 if not insitu: 983 from asap._asap import opacity as _opacity 984 s = scantable(_opacity(self, tau, allaxes)) 985 s._add_history("opacity", varlist) 986 print_log() 987 return s 988 else: 989 from asap._asap import opacity_insitu as _opacity 990 _opacity(self, tau, allaxes) 991 self._add_history("opacity", varlist) 992 print_log() 993 return 888 self._math._setinsitu(insitu) 889 varlist = vars() 890 s = scantable(self._math._opacity(self, tau)) 891 s._add_history("opacity", varlist) 892 print_log() 893 if insitu: self._assign(s) 894 else: return s 994 895 995 896 def bin(self, width=5, insitu=None): … … 1002 903 """ 1003 904 if insitu is None: insitu = rcParams['insitu'] 1004 varlist = vars() 1005 if not insitu: 1006 from asap._asap import bin as _bin 1007 s = scantable(_bin(self, width)) 1008 s._add_history("bin",varlist) 1009 print_log() 1010 return s 1011 else: 1012 from asap._asap import bin_insitu as _bin 1013 _bin(self, width) 1014 self._add_history("bin",varlist) 1015 print_log() 1016 return 905 self._math._setinsitu(insitu) 906 varlist = vars() 907 s = scantable(self._math._bin(self, width)) 908 s._add_history("bin",varlist) 909 print_log() 910 if insitu: self._assign(s) 911 else: return s 1017 912 1018 913 … … 1029 924 """ 1030 925 if insitu is None: insitu = rcParams['insitu'] 1031 varlist = vars() 1032 if not insitu: 1033 from asap._asap import resample as _resample 1034 s = scantable(_resample(self, method, width)) 1035 s._add_history("resample",varlist) 1036 print_log() 1037 return s 1038 else: 1039 from asap._asap import resample_insitu as _resample 1040 _resample(self, method, width) 1041 self._add_history("resample",varlist) 1042 print_log() 1043 return 1044 1045 def average_pol(self, mask=None, weight='none', insitu=None): 1046 """ 1047 Average the Polarisations together. 1048 The polarisation cursor of the output scan is set to 0 1049 Parameters: 1050 mask: An optional mask defining the region, where the 1051 averaging will be applied. The output will have all 1052 specified points masked. 1053 weight: Weighting scheme. 'none' (default), 'var' (1/var(spec) 1054 weighted), or 'tsys' (1/Tsys**2 weighted) 1055 insitu: if False a new scantable is returned. 1056 Otherwise, the scaling is done in-situ 1057 The default is taken from .asaprc (False) 1058 """ 1059 if insitu is None: insitu = rcParams['insitu'] 1060 varlist = vars() 1061 1062 if mask is None: 1063 mask = () 1064 if not insitu: 1065 from asap._asap import averagepol as _avpol 1066 s = scantable(_avpol(self, mask, weight)) 1067 s._add_history("average_pol",varlist) 1068 print_log() 1069 return s 1070 else: 1071 from asap._asap import averagepol_insitu as _avpol 1072 _avpol(self, mask, weight) 1073 self._add_history("average_pol",varlist) 1074 print_log() 1075 return 1076 1077 def smooth(self, kernel="hanning", width=5.0, insitu=None, allaxes=None): 926 self._math._setinsitu(insitu) 927 varlist = vars() 928 s = scantable(self._math._resample(self, method, width)) 929 s._add_history("resample",varlist) 930 print_log() 931 if insitu: self._assign(s) 932 else: return s 933 934 935 # def average_pol(self, mask=None, weight='none', insitu=None): 936 # """ 937 # Average the Polarisations together. 938 # The polarisation cursor of the output scan is set to 0 939 # Parameters: 940 # mask: An optional mask defining the region, where the 941 # averaging will be applied. The output will have all 942 # specified points masked. 943 # weight: Weighting scheme. 'none' (default), 'var' (1/var(spec) 944 # weighted), or 'tsys' (1/Tsys**2 weighted) 945 # insitu: if False a new scantable is returned. 946 # Otherwise, the scaling is done in-situ 947 # The default is taken from .asaprc (False) 948 # """ 949 # if insitu is None: insitu = rcParams['insitu'] 950 # self._math._setinsitu(insitu) 951 # varlist = vars() 952 # 953 # if mask is None: 954 # mask = () 955 # s = self._math._averagepol(self, mask, weight) 956 # s._add_history("average_pol",varlist) 957 # print_log() 958 # if insitu: self._assign(s) 959 # else: return scantable(s) 960 961 def smooth(self, kernel="hanning", width=5.0, insitu=None): 1078 962 """ 1079 963 Smooth the spectrum by the specified kernel (conserving flux). … … 1090 974 Otherwise, the scaling is done in-situ 1091 975 The default is taken from .asaprc (False) 1092 allaxes: If True (default) apply to all spectra. Otherwise1093 apply only to the selected (beam/pol/if)spectra only1094 The default is taken from .asaprc (True if none)1095 976 Example: 1096 977 none 1097 978 """ 1098 if allaxes is None: allaxes = rcParams['scantable.allaxes']1099 979 if insitu is None: insitu = rcParams['insitu'] 1100 varlist = vars() 1101 if not insitu: 1102 from asap._asap import smooth as _smooth 1103 s = scantable(_smooth(self,kernel,width,allaxes)) 1104 s._add_history("smooth", varlist) 1105 print_log() 1106 return s 1107 else: 1108 from asap._asap import smooth_insitu as _smooth 1109 _smooth(self,kernel,width,allaxes) 1110 self._add_history("smooth", varlist) 1111 print_log() 1112 return 1113 1114 def poly_baseline(self, mask=None, order=0, insitu=None, allaxes=None): 980 self._math._setinsitu(insitu) 981 varlist = vars() 982 s = scantable(self._math._smooth(self,kernel,width)) 983 s._add_history("smooth", varlist) 984 print_log() 985 if insitu: self._assign(s) 986 else: return s 987 988 989 def poly_baseline(self, mask=None, order=0, insitu=None): 1115 990 """ 1116 991 Return a scan which has been baselined (all rows) by a polynomial. … … 1130 1005 bscan = scan.poly_baseline(order=3) 1131 1006 """ 1132 if allaxes is None: allaxes = rcParams['scantable.allaxes']1133 1007 if insitu is None: insitu = rcParams['insitu'] 1134 1008 varlist = vars() 1135 1009 if mask is None: 1136 1010 from numarray import ones 1137 mask = list(ones(self.nchan( )))1011 mask = list(ones(self.nchan(-1))) 1138 1012 from asap.asapfitter import fitter 1139 1013 f = fitter() 1140 1014 f.set_scan(self, mask) 1141 1015 f.set_function(poly=order) 1142 sf = f.auto_fit(insitu,allaxes) 1143 if insitu: 1144 self._add_history("poly_baseline", varlist) 1145 print_log() 1146 return 1147 else: 1148 sf._add_history("poly_baseline", varlist) 1149 print_log() 1150 return sf 1151 1152 def auto_poly_baseline(self, mask=None, edge=(0,0), order=0, 1153 threshold=3,insitu=None): 1154 """ 1155 Return a scan which has been baselined (all rows) by a polynomial. 1156 Spectral lines are detected first using linefinder and masked out 1157 to avoid them affecting the baseline solution. 1158 1159 Parameters: 1160 mask: an optional mask retreived from scantable 1161 edge: an optional number of channel to drop at 1162 the edge of spectrum. If only one value is 1163 specified, the same number will be dropped from 1164 both sides of the spectrum. Default is to keep 1165 all channels 1166 order: the order of the polynomial (default is 0) 1167 threshold: the threshold used by line finder. It is better to 1168 keep it large as only strong lines affect the 1169 baseline solution. 1170 insitu: if False a new scantable is returned. 1171 Otherwise, the scaling is done in-situ 1172 The default is taken from .asaprc (False) 1173 1174 Example: 1175 scan2=scan.auto_poly_baseline(order=7) 1176 """ 1177 if insitu is None: insitu = rcParams['insitu'] 1178 varlist = vars() 1179 from asap.asapfitter import fitter 1180 from asap.asaplinefind import linefinder 1181 from asap import _is_sequence_or_number as _is_valid 1182 1183 if not _is_valid(edge, int): 1184 1185 raise RuntimeError, "Parameter 'edge' has to be an integer or a \ 1186 pair of integers specified as a tuple" 1187 1188 # setup fitter 1189 f = fitter() 1190 f.set_function(poly=order) 1191 1192 # setup line finder 1193 fl=linefinder() 1194 fl.set_options(threshold=threshold) 1195 1196 if not insitu: 1197 workscan=self.copy() 1198 else: 1199 workscan=self 1200 1201 sel=workscan.get_cursor() 1202 rows=range(workscan.nrow()) 1203 from asap import asaplog 1204 for i in range(workscan.nbeam()): 1205 workscan.setbeam(i) 1206 for j in range(workscan.nif()): 1207 workscan.setif(j) 1208 for k in range(workscan.npol()): 1209 workscan.setpol(k) 1210 asaplog.push("Processing:") 1211 msg = 'Beam[%d], IF[%d], Pol[%d]' % (i,j,k) 1212 asaplog.push(msg) 1213 for iRow in rows: 1214 fl.set_scan(workscan,mask,edge) 1215 fl.find_lines(iRow) 1216 f.set_scan(workscan, fl.get_mask()) 1217 f.x=workscan._getabcissa(iRow) 1218 f.y=workscan._getspectrum(iRow) 1219 f.data=None 1220 f.fit() 1221 x=f.get_parameters() 1222 workscan._setspectrum(f.fitter.getresidual(),iRow) 1223 workscan.set_cursor(sel[0],sel[1],sel[2]) 1224 if not insitu: 1225 return workscan 1226 1227 def rotate_linpolphase(self, angle, allaxes=None): 1228 """ 1229 Rotate the phase of the complex polarization O=Q+iU correlation. 1230 This is always done in situ in the raw data. So if you call this 1231 function more than once then each call rotates the phase further. 1232 Parameters: 1233 angle: The angle (degrees) to rotate (add) by. 1234 allaxes: If True apply to all spectra. Otherwise 1235 apply only to the selected (beam/pol/if)spectra only. 1236 The default is taken from .asaprc (True if none) 1237 Examples: 1238 scan.rotate_linpolphase(2.3) 1239 """ 1240 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 1241 varlist = vars() 1242 from asap._asap import _rotate_linpolphase as _rotate 1243 _rotate(self, angle, allaxes) 1244 self._add_history("rotate_linpolphase", varlist) 1245 print_log() 1246 return 1247 1248 1249 def rotate_xyphase(self, angle, allaxes=None): 1250 """ 1251 Rotate the phase of the XY correlation. This is always done in situ 1252 in the data. So if you call this function more than once 1253 then each call rotates the phase further. 1254 Parameters: 1255 angle: The angle (degrees) to rotate (add) by. 1256 allaxes: If True apply to all spectra. Otherwise 1257 apply only to the selected (beam/pol/if)spectra only. 1258 The default is taken from .asaprc (True if none) 1259 Examples: 1260 scan.rotate_xyphase(2.3) 1261 """ 1262 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 1263 varlist = vars() 1264 from asap._asap import _rotate_xyphase 1265 _rotate_xyphase(self, angle, allaxes) 1266 self._add_history("rotate_xyphase", varlist) 1267 print_log() 1268 return 1269 1270 1271 def add(self, offset, insitu=None, allaxes=None): 1016 s = f.auto_fit(insitu) 1017 s._add_history("poly_baseline", varlist) 1018 print_log() 1019 if insitu: self._assign(s) 1020 else: return s 1021 1022 # def auto_poly_baseline(self, mask=None, edge=(0,0), order=0, 1023 # threshold=3, insitu=None): 1024 # """ 1025 # Return a scan which has been baselined (all rows) by a polynomial. 1026 # Spectral lines are detected first using linefinder and masked out 1027 # to avoid them affecting the baseline solution. 1028 # 1029 # Parameters: 1030 # mask: an optional mask retreived from scantable 1031 # edge: an optional number of channel to drop at 1032 # the edge of spectrum. If only one value is 1033 # specified, the same number will be dropped from 1034 # both sides of the spectrum. Default is to keep 1035 # all channels 1036 # order: the order of the polynomial (default is 0) 1037 # threshold: the threshold used by line finder. It is better to 1038 # keep it large as only strong lines affect the 1039 # baseline solution. 1040 # insitu: if False a new scantable is returned. 1041 # Otherwise, the scaling is done in-situ 1042 # The default is taken from .asaprc (False) 1043 # 1044 # Example: 1045 # scan2=scan.auto_poly_baseline(order=7) 1046 # """ 1047 # if insitu is None: insitu = rcParams['insitu'] 1048 # varlist = vars() 1049 # from asap.asapfitter import fitter 1050 # from asap.asaplinefind import linefinder 1051 # from asap import _is_sequence_or_number as _is_valid 1052 # 1053 # if not _is_valid(edge, int): 1054 # raise RuntimeError, "Parameter 'edge' has to be an integer or a \ 1055 # pair of integers specified as a tuple" 1056 # 1057 # # setup fitter 1058 # f = fitter() 1059 # f.set_function(poly=order) 1060 # 1061 # # setup line finder 1062 # fl=linefinder() 1063 # fl.set_options(threshold=threshold) 1064 # 1065 # if not insitu: 1066 # workscan=self.copy() 1067 # else: 1068 # workscan=self 1069 # 1070 # rows=range(workscan.nrow()) 1071 # from asap import asaplog 1072 # for i in rows: 1073 # asaplog.push("Processing:") 1074 # asaplog.push(msg) 1075 # fl.set_scan(workscan,mask,edge) 1076 # fl.find_lines(i) 1077 # f.set_scan(workscan, fl.get_mask()) 1078 # f.x = workscan._getabcissa(i) 1079 # f.y = workscan._getspectrum(i) 1080 # f.data = None 1081 # f.fit() 1082 # x = f.get_parameters() 1083 # workscan._setspectrum(f.fitter.getresidual(), i) 1084 # workscan._add_history("poly_baseline", varlist) 1085 # if insitu: 1086 # self._assign(workscan) 1087 # else: 1088 # return workscan 1089 # 1090 # def rotate_linpolphase(self, angle): 1091 # """ 1092 # Rotate the phase of the complex polarization O=Q+iU correlation. 1093 # This is always done in situ in the raw data. So if you call this 1094 # function more than once then each call rotates the phase further. 1095 # Parameters: 1096 # angle: The angle (degrees) to rotate (add) by. 1097 # Examples: 1098 # scan.rotate_linpolphase(2.3) 1099 # """ 1100 # varlist = vars() 1101 # from asap._asap import _rotate_linpolphase as _rotate 1102 # _rotate(self, angle, allaxes) 1103 # self._add_history("rotate_linpolphase", varlist) 1104 # print_log() 1105 # return 1106 # 1107 # 1108 # def rotate_xyphase(self, angle): 1109 # """ 1110 # Rotate the phase of the XY correlation. This is always done in situ 1111 # in the data. So if you call this function more than once 1112 # then each call rotates the phase further. 1113 # Parameters: 1114 # angle: The angle (degrees) to rotate (add) by. 1115 # Examples: 1116 # scan.rotate_xyphase(2.3) 1117 # """ 1118 # varlist = vars() 1119 # from asap._asap import _rotate_xyphase 1120 # _rotate_xyphase(self, angle, allaxes) 1121 # self._add_history("rotate_xyphase", varlist) 1122 # print_log() 1123 # return 1124 1125 1126 def add(self, offset, insitu=None): 1272 1127 """ 1273 1128 Return a scan where all spectra have the offset added … … 1277 1132 Otherwise, the scaling is done in-situ 1278 1133 The default is taken from .asaprc (False) 1279 allaxes: if True apply to all spectra. Otherwise 1280 apply only to the selected (beam/pol/if)spectra only 1281 The default is taken from .asaprc (True if none) 1282 """ 1283 if allaxes is None: allaxes = rcParams['scantable.allaxes'] 1134 """ 1284 1135 if insitu is None: insitu = rcParams['insitu'] 1285 varlist = vars() 1286 if not insitu: 1287 from asap._asap import add as _add 1288 s = scantable(_add(self, offset, allaxes)) 1289 s._add_history("add",varlist) 1290 print_log() 1136 self._math._setinsitu(insitu) 1137 varlist = vars() 1138 s = scantable(self._math._unaryop(self, offset, "ADD", False)) 1139 s._add_history("add",varlist) 1140 print_log() 1141 if insitu: 1142 self._assign(s) 1143 else: 1291 1144 return s 1292 else: 1293 from asap._asap import add_insitu as _add 1294 _add(self, offset, allaxes) 1295 self._add_history("add",varlist) 1296 print_log() 1297 return 1298 1299 def scale(self, factor, insitu=None, allaxes=None, tsys=True): 1145 1146 def scale(self, factor, tsys=True, insitu=None,): 1300 1147 """ 1301 1148 Return a scan where all spectra are scaled by the give 'factor' … … 1305 1152 Otherwise, the scaling is done in-situ 1306 1153 The default is taken from .asaprc (False) 1307 allaxes: if True apply to all spectra. Otherwise1308 apply only to the selected (beam/pol/if)spectra only.1309 The default is taken from .asaprc (True if none)1310 1154 tsys: if True (default) then apply the operation to Tsys 1311 1155 as well as the data 1312 1156 """ 1313 if allaxes is None: allaxes = rcParams['scantable.allaxes']1314 1157 if insitu is None: insitu = rcParams['insitu'] 1315 varlist = vars() 1316 if not insitu: 1317 from asap._asap import scale as _scale 1318 s = scantable(_scale(self, factor, allaxes, tsys)) 1319 s._add_history("scale",varlist) 1320 print_log() 1158 self._math._setinsitu(insitu) 1159 varlist = vars() 1160 s = scantable(self._math._unaryop(self, factor, "MUL", tsys)) 1161 s._add_history("scale",varlist) 1162 print_log() 1163 if insitu: 1164 self._assign(s) 1165 else: 1321 1166 return s 1322 else: 1323 from asap._asap import scale_insitu as _scale 1324 _scale(self, factor, allaxes, tsys) 1325 self._add_history("scale",varlist) 1326 print_log() 1327 return 1328 1329 def auto_quotient(self, mode='suffix', preserve=True): 1167 1168 def auto_quotient(self, mode='time', preserve=True): 1330 1169 """ 1331 1170 This function allows to build quotients automatically. … … 1343 1182 remove: Output = Tref * (on/off) - Ton 1344 1183 """ 1345 modes = [" suffix","time"]1184 modes = ["time"] 1346 1185 if not mode in modes: 1347 print "please provide valid mode. Valid modes are %s" % (modes) 1348 return None 1349 from asap._asap import quotient as _quot 1350 if mode == "suffix": 1351 srcs = self.get_scan("*[^_ewR]") 1352 refs = self.get_scan("*[_ewR]") 1353 if isinstance(srcs,scantable) and isinstance(refs,scantable): 1354 from asap import asaplog 1355 ns,nr = srcs.nrow(),refs.nrow() 1356 msg = "Found %i Off and %i On scans" % (ns,nr) 1357 asaplog.push(msg) 1358 if nr > ns: 1359 asaplog("Found more Off integrations than On scans - dropping excess Offs.") 1360 refs = refs.get_scan(range(ns)) 1361 print_log() 1362 return scantable(_quot(srcs,refs, preserve)) 1363 else: 1364 msg = "Couldn't find any on/off pairs" 1365 if rcParams['verbose']: 1366 print msg 1367 return 1368 else: 1369 raise RuntimeError() 1370 else: 1371 if rcParams['verbose']: print "not yet implemented" 1372 return None 1373 1374 def quotient(self, other, isreference=True, preserve=True): 1375 """ 1376 Return the quotient of a 'source' (on) scan and a 'reference' (off) 1377 scan. 1378 The reference can have just one row, even if the signal has many. 1379 Otherwise they must have the same number of rows. 1380 The cursor of the output scan is set to 0 1381 Parameters: 1382 other: the 'other' scan 1383 isreference: if the 'other' scan is the reference (default) 1384 or source 1385 preserve: you can preserve (default) the continuum or 1386 remove it. The equations used are 1387 preserve: Output = Toff * (on/off) - Toff 1388 remove: Output = Tref * (on/off) - Ton 1389 Example: 1390 # src is a scantable for an 'on' scan, ref for an 'off' scantable 1391 q1 = src.quotient(ref) 1392 q2 = ref.quotient(src, isreference=False) 1393 # gives the same result 1394 """ 1395 from asap._asap import quotient as _quot 1396 try: 1397 s = None 1398 if isreference: 1399 s = scantable(_quot(self, other, preserve)) 1400 else: 1401 s = scantable(_quot(other, self, preserve)) 1402 print_log() 1403 return s 1404 except RuntimeError,e: 1405 if rcParams['verbose']: 1406 print e 1407 return 1408 else: raise 1186 msg = "please provide valid mode. Valid modes are %s" % (modes) 1187 raise ValueError(msg) 1188 varlist = vars() 1189 s = scantable(self._math._quotient(self, mode, preserve)) 1190 s._add_history("auto_quotient",varlist) 1191 print_log() 1192 return s 1193 1194 1195 1409 1196 1410 1197 def freq_switch(self, insitu=None): … … 1419 1206 """ 1420 1207 if insitu is None: insitu = rcParams['insitu'] 1421 varlist = vars() 1422 try: 1423 if insitu: 1424 from asap._asap import _frequency_switch_insitu 1425 _frequency_switch_insitu(self) 1426 self._add_history("freq_switch", varlist) 1427 print_log() 1428 return 1429 else: 1430 from asap._asap import _frequency_switch 1431 sf = scantable(_frequency_switch(self)) 1432 sf._add_history("freq_switch", varlist) 1433 print_log() 1434 return sf 1435 except RuntimeError,e: 1436 if rcParams['verbose']: print e 1437 else: raise 1208 self._math._setinsitu(insitu) 1209 varlist = vars() 1210 s = scantable(self._math._freqswitch(self)) 1211 s._add_history("freq_switch",varlist) 1212 print_log() 1213 if insitu: self._assign(s) 1214 else: return s 1438 1215 1439 1216 def recalc_azel(self): … … 1445 1222 """ 1446 1223 varlist = vars() 1447 self._recalc _azel()1224 self._recalcazel() 1448 1225 self._add_history("recalc_azel", varlist) 1449 1226 print_log() … … 1454 1231 s = None 1455 1232 if isinstance(other, scantable): 1456 from asap._asap import b_operate as _bop1457 s = scantable(_bop(self, other, 'add', True))1233 print "scantable + scantable NYI" 1234 return 1458 1235 elif isinstance(other, float): 1459 from asap._asap import add as _add 1460 s = scantable(_add(self, other, True)) 1236 s = scantable(self._math._unaryop(self, other, "ADD", False)) 1461 1237 else: 1462 1238 raise TypeError("Other input is not a scantable or float value") … … 1472 1248 s = None 1473 1249 if isinstance(other, scantable): 1474 from asap._asap import b_operate as _bop1475 s = scantable(_bop(self, other, 'sub', True))1250 print "scantable - scantable NYI" 1251 return 1476 1252 elif isinstance(other, float): 1477 from asap._asap import add as _add 1478 s = scantable(_add(self, -other, True)) 1253 s = scantable(self._math._unaryop(self, other, "SUB", False)) 1479 1254 else: 1480 1255 raise TypeError("Other input is not a scantable or float value") … … 1490 1265 s = None 1491 1266 if isinstance(other, scantable): 1492 from asap._asap import b_operate as _bop 1493 s = scantable(_bop(self, other, 'mul', True)) 1267 print "scantable * scantable NYI" 1268 return 1269 elif isinstance(other, float): 1270 s = scantable(self._math._unaryop(self, other, "MUL", False)) 1271 else: 1272 raise TypeError("Other input is not a scantable or float value") 1273 s._add_history("operator *", varlist) 1274 print_log() 1275 return s 1276 1277 1278 def __div__(self, other): 1279 """ 1280 implicit on all axes and on Tsys 1281 """ 1282 varlist = vars() 1283 s = None 1284 if isinstance(other, scantable): 1285 print "scantable / scantable NYI" 1286 return 1494 1287 elif isinstance(other, float): 1495 1288 if other == 0.0: 1496 1289 raise ZeroDivisionError("Dividing by zero is not recommended") 1497 from asap._asap import scale as _sca 1498 s = scantable(_sca(self, other, True)) 1499 else: 1500 raise TypeError("Other input is not a scantable or float value") 1501 s._add_history("operator *", varlist) 1502 print_log() 1503 return s 1504 1505 1506 def __div__(self, other): 1507 """ 1508 implicit on all axes and on Tsys 1509 """ 1510 varlist = vars() 1511 s = None 1512 if isinstance(other, scantable): 1513 from asap._asap import b_operate as _bop 1514 s = scantable(_bop(self, other, 'div', True)) 1515 elif isinstance(other, float): 1516 if other == 0.0: 1517 raise ZeroDivisionError("Dividing by zero is not recommended") 1518 from asap._asap import scale as _sca 1519 s = scantable(_sca(self, 1.0/other, True)) 1290 s = scantable(self._math._unaryop(self, other, "DIV", False)) 1520 1291 else: 1521 1292 raise TypeError("Other input is not a scantable or float value") … … 1603 1374 return lbl 1604 1375 1376 def _check_ifs(self): 1377 nchans = [self.nchan(i) for i in range(self.nif(-1))] 1378 return (sum(nchans)/len(nchans) == nchans[0])
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