Dictionaries

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8.1.4 Dictionaries

Currently, the SDtasks return the Python dictionary for the results of line fitting (in sdfit) and region statistics (in sdstat). If you invoke these tasks by assigning a variable for the return, you can then access the elements through the keywords, e.g.,

CASA <10>: line_stat=sdstat()
Current fluxunit = K
No need to convert fluxunits
Using current frequency frame
Using current doppler convention

CASA <11>: line_stat
Out[11]:
{’eqw’: 70.861755476162784,
’max’: 1.2750182151794434,
’mean’: 0.35996028780937195,
’median’: 0.23074722290039062,
’min’: -0.20840644836425781,
’rms’: 0.53090775012969971,
’stddev’: 0.39102539420127869,
’sum’: 90.350028991699219}

One can then use these values in scripts by accessing this dictionary, e.g.,

CASA <12>: print "Line max = %5.3f K" % (line_stat[’max’])
Line max = 1.275 K

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