plotting a saved file with one IF doesn't work

[G.Fuller@…]

Code to demo bug:

d = scantable('2010-03-24_1445_316p81-0p06.rpf')

m = d.auto_quotient()

m.set_freqframe('LSRK') m.set_unit('GHz') m.freq_align()

iffreqs = [23.6945e9,24.13939e9]

m.set_restfreqs(iffreqs) # Set the (1,1) and (4,4) freFs pdq = m.average_pol(weight='tsys') av = average_time(pdq,weight='tsys',align=False) bsp = av.copy()

bsp.save('blspec',overwrite=True) resp=scantable('blspec') plotter.plot(resp)

• works

but

ifno=0 sel=selector() sel.set_ifs(ifno) bsp.set_selection(sel)

bsp.save('only1IF',overwrite=True) resp=scantable('only1IF') plotter.plot(resp)

--

dies with the message /usr/lib64/python2.6/site-packages/asap/asapplotter.py in _plot(self, scan)

765 y = scan._getspectrum(r, polmodes[scan.getpol(r)]) 766 else:

--> 767 y = scan._getspectrum(r)

768 m = scan._getmask(r) 769 from matplotlib.numerix import logical_not, logical_and

RuntimeError: Table DataManager error: Invalid operation: MSM: no array in row 0 of /local/home/gaf/DATA/Parkes/MMB_NH3/temp14634_856/table.f1