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imagerpositiontest.set_imaging_data_parms - Function

	Package	synthesis
	Module	synthesistester
	Tool	imagerpositiontest

Set the MS parameters to be used for imaging.

Synopsis
set_imaging_data_parms(mode, nchan, start, step, msselect)

Description
Set the MS parameters to be used for imaging. These parameters are passed to (p)imager.setdata() by make_image(). You sould only need to call this function when you explicitly want to set these parameters; otherwise, sensible defaults are used.

Arguments

mode		Type of processing
		Allowed:	String: 'channel'|'velocity'
		Default:	'channel'
nchan		Number of channels
		Allowed:	Integer > 0
		Default:	Unset (will use number of channels in the simulated MS
start		Starting channel
		Allowed:	0 > Integer >= number of channels in data set
		Default:	1
step		Step in channels
		Allowed:	Integer > 0
		Default:	1
msselect		TaQL select string applied as a logical "and" with the other selections
		Allowed:	String (valid TaQL query)
		Default:	Unset

Returns
T

Example

- include 'imagerpositiontest.g';
- ipt := imagerpositiontest();
# set up a single field mem test, dropping some baselines
- ipt.set_deconvolution_function('mem');
- ipt.set_sim_parms(nfields=1);
- ipt.set_mem_parms(algorithm='entropy',niter=25,sigma='0.1Jy');
- ipt.set_imaging_data_parms(msselect='ANTENNA1 <= 20');
T
- ipt.dotests();