Changes between Initial Version and Version 1 of WriteSpectraToTextFile

Timestamp:

05/08/09 11:21:03 (15 years ago)

Author:

Malte Marquarding

Comment:

--

WriteSpectraToTextFile

@@ +1 @@
+= Write spectra to a text file =
+
+Assume that you have a {{{scantable}}} called {{{scan}}} it contains linear polarisations and cross-polarisation terms. ou now wnat to write out circular polarisations.
+
+{{{
+scan = scantable("pol.rpf")
+# some processing
+scan.set_unit("km/s") # to get abcissa values in km/s
+# assumption that at this point there is only one scan left in the scantable
+assert scan.nrow() == 4
+
+# abscissa
+x, xlabel = scan.get_abcissa(0)
+sel = selector()
+sel.set_pols("RR")
+scan.set_selection(sel)
+yrr = scan.get_spectrum(0)
+sel.set_pols("LL")
+scan.set_selection(sel)
+yll = scan.get_spectrum(0)
+
+
+columns = map(None, x, yrr, yll)
+
+
+# write a file for an RR/LL pair
+myfile = open("RR-LL-spectra.txt", "w")
+header = "#%s\tRR\tLL\n\n" % xlabel
+myfile.write(header)
+for row in columns:
+   outstring = "%f\t%f\t%f\n" % row
+   myfile.write()
+
+myfile.close()
+
+}}} 
+