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Version 1.9 Build 1556

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autoflag.setnewtimemed - Function

	Package	synthesis
	Module	autoflag
	Tool	autoflag

Sets up the new time-median flagging method

Synopsis
setnewtimemed(thr, column, expr, fignore)

Description

The newtimemed method uses a median-in-time filter. It follows the procedure of timemed but considering a median value from all time slots in a chunk.

The median is computed on a per-channel, per-baseline basis. The thr parameter multiplying the standard deviation of the data in a chunk sets the threshold for flagging. If the thr parameter is specified (e.g. thr = 3), all points with greater than three standard deviations away from the median are flagged.

Arguments

thr		Flagging threshold
		Allowed:	numeric (real)
		Default:	3
column		Which column to base flagging on
		Allowed:	"DATA", "MODEL" or "CORR"
		Default:	"DATA"
expr		Expression to use
		Allowed:	see text
		Default:	"ABS I"
fignore		Ignore existing flags
		Allowed:	Boolean
		Default:	F

Example

- af:=autoflag('H031121.MS')
- af.setdata()
- af.setnewtimemed(thr=5, expr="ABS RR")
- af.run()