ms.clipbuffer - Function

Clip the internal buffer with specified limits.

Synopsis
clipbuffer(pixellevel, timelevel, channellevel)

Arguments

pixellevel	cliplevel for pixels
	Allowed:	positive value
timelevel	cliplevel for time slots
	Allowed:	positive value
channellevel	cliplevel for channels
	Allowed:	positive value

Returns
Bool, True if operation successful

Description
This sets flags in the internal buffer based on the clip levels specified. You can flag times, channels and individual pixels based on their deviation from the median. The cliplevel is specified in units the corresponding average absolute deviation (a robust version of rms).

Example

myms:=ms("3C273XC1.MS");
myms.select([antenna1=3]);
myms.fillbuffer("DATA");
stats:=myms.diffbuffer("TIME",15);
myms.clipbuffer(6,5,5);

We open the MS for reading, select a subset and read the data into the buffer. We then remove the average over a 15 point time window and clip the resulting data at 6 times the average absolute deviation from the median for individual pixels, and at 5 times this for channels and timeslots.

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	Package	general
	Module	ms
	Tool	ms