source: branches/Release-2-fixes/python/asapfit.py@ 1643

Last change on this file since 1643 was 529, checked in by mar637, 20 years ago

A class to wrap up fit parameters

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.2 KB
Line 
1from _asap import sdfit
2from asap import rcParams
3
4class asapfit(sdfit):
5
6 def __init__(self, other):
7 sdfit.__init__(self,other)
8
9 def __str__(self):
10 if self.__len__() == 0:
11 return "No fits"
12 out = ""
13 for i in range(self.__len__()):
14 out += "Fit No %d:" % (i)
15 pars = self.getparameters(i)
16 mask = self.getfixedparameters(i)
17 funcs = self.getfunctions(i)
18 comps = self.getcomponents(i)
19 finfo = self.getframeinfo(i)
20 pos=0
21 k = 0
22 for f in funcs:
23 out += "\n Type: "
24 out += f
25 s = pos
26 pos += comps[k]
27 ps = pars[s:pos]
28 out += "\n Parameters: "
29 out += self._format_pars(pars[s:pos],f, finfo[0])
30 out += "\n Fixed Parms: "
31 out += str(mask[s:pos])
32 out += "\n Frame: "
33 out += str(finfo)
34 out += "\n"
35 out += "\n"
36 return out
37
38 def as_dict(self):
39 out = []
40 for i in range(self.__len__()):
41 pars = self.getparameters(i)
42 mask = self.getfixedparameters(i)
43 funcs = self.getfunctions(i)
44 comps = self.getcomponents(i)
45 pos=0
46 k=0
47 comp = []
48 for f in funcs:
49 s = pos
50 pos += comps[k]
51 ps = pars[s:pos]
52 d = {'function' : f,
53 'parameters' : pars[s:pos],
54 'fixed' : mask[s:pos],
55 'frame' : self.getframeinfo(i)
56 }
57 comp.append(d)
58 out.append(comp)
59 return out
60
61
62 def _format_pars(self, pars, ftype, unit):
63 out = ''
64 if ftype == 'poly':
65 i = 0
66 for p in pars:
67 out += ' p%d = %3.3f %s,' % (i,p,unit)
68 i+=1
69 out = out[1:-1]
70 elif ftype == 'gauss':
71 out += 'peak = %3.3f , centre = %3.3f %s, FWHM = %3.3f %s' % (pars[0],pars[1],unit,pars[2],unit)
72
73 return out
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