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findChannel

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Given a CASA cube and a channel, this function finds the nearest frequency channel in a second cube. See also numberOfChannelsInCube.

Usage: 

au.findChannel(img, channel, img2)

Example: 

CASA <2>: au.findChannel('HLTau_CO1_0.tap200klR0.5_0.5kms_ms_flgbig.image',0,'HLTau_CO1_0.tap200klR0.5_0.25kms_ms_flgbig.image')
*** reffreqtype in get before 
*** reffreqtype in get LSRK
Channel  0 = 115272353510 Hz
Channel 55 = 115261779668 Hz
*** reffreqtype in get before 
*** reffreqtype in get LSRK
Channel  0 = 115273507020 Hz
Channel 135 = 115260530032 Hz
channel =  11.9999999395
  Out[2]: 12

-- ToddHunter - 2015-01-09
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Topic revision: r1 - 2015-01-09, ToddHunter
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