| 1 | #import genera operating system related functions |
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| 2 | import os |
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| 3 | #import asap module |
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| 4 | from asap import * |
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| 5 | # create a readersa and open an RPFITS file |
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| 6 | r = reader('/u/mmarquar/zorro/singledish/data/2001-09-01_0332_P363.rpf') |
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| 7 | # create a vector with numbers [0..109] |
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| 8 | integrations = range(110) |
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| 9 | # get the data out of the reader |
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| 10 | scans = r.read(integrations) |
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| 11 | # close the reader |
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| 12 | r = None |
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| 13 | print 'Begin export test...' |
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| 14 | # Write out the spectra in SDFITS format |
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| 15 | scans.save('/tmp/test_SDWriter.sdfits','SDFITS') |
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| 16 | # clean up |
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| 17 | print "removing test_SDWriter.sdfits ..." |
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| 18 | os.remove('/tmp/test_SDWriter.sdfits') |
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| 19 | # print a short summary of the data |
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| 20 | scans.summary() |
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| 21 | # get the scan with the number '0' |
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| 22 | scan = scans.get_scan(0) |
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| 23 | # get the scan with the name 'ref_R' |
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| 24 | ref = scans.get_scan('ref_R') |
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| 25 | # close the data table |
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| 26 | scans = None |
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| 27 | # open the math server |
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| 28 | # average the "on" scan |
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| 29 | scanav = average_time(scan) |
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| 30 | # get rid of the original scan |
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| 31 | scan = None |
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| 32 | # print a summary of the scan |
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| 33 | scanav.summary() |
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| 34 | # average the "off" scan |
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| 35 | refav = average_time(ref) |
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| 36 | # get rid of the original scan |
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| 37 | ref = None |
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| 38 | # print a summary of the scan |
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| 39 | refav.summary() |
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| 40 | # form the quotione spectrum |
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| 41 | quot = quotient(scanav,refav) |
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| 42 | # set the cursor to polarisation 0 |
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| 43 | quot.set_cursor(thepol=0) |
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| 44 | # get the spectrum for polarisation 0 |
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| 45 | v0 = quot._getspectrum() |
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| 46 | #print the first ten channel |
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| 47 | print v0[0:10] |
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| 48 | # set the cursor to polarisation 1 |
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| 49 | quot.set_cursor(thepol=1) |
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| 50 | # get the spectrum for polarisation 1 |
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| 51 | v1 = quot._getspectrum() |
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| 52 | #print the first ten channel |
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| 53 | print v1[0:10] |
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| 54 | # write it to disk for further use |
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| 55 | quot.save('/tmp/myfirstquotient.asap') |
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| 56 | # cleanup |
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| 57 | print "removing /tmp/myfirstquotient.asap ..." |
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| 58 | os.system('rm -rf /tmp/myfirstquotient.asap') |
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| 59 | print "Test successful." |
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