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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