ms.concatenate - Function

Concatenate two measurement sets

Synopsis
concatenate(msfile, freqtol, dirtol)

Arguments

msfile	in	The name of the measurement set to append
		Allowed:	String
		Default:	no default
freqtol	in	Frequency difference within which 2 spectral windows are considered similar
		Allowed:	Quantity
		Default:	'1Hz'
dirtol	in	Direction difference within which 2 fields are considered the same
		Allowed:	Quantity
		Default:	'1mas'

Returns
Nothing

Description
This function concatenates two measurement sets together.

The data is copied from the measurement set specified in the msfile arguement to the end of the measurement set attached to the ms tool. If a lot of data needs to be copied this function may take some time. You need to open the measurement set for writing in order to use this function.

This function is new to the ms tool and currently requires that both the measurement sets involved in the concatenation were originally derived from of a UVFITS file (and converted using the fitstoms function).

Example

      include 'ms.g'
      myms := ms("3C273XC1.ms", readonly=F)
      myms.concatenate("BLLAC.ms", '1GHz', '1arcsec')
      myms.done()

This example appends the data from the BLLAC measurement set to the end of the 3C273 measurement set. Its going to assume a frequency tolerance of 1GHz and position tolerance of 1 arcsec in deciding if the spwids and fieldids in the measurementsets are similar or not.

Next: ms.split - Function Up: ms - Tool Previous: ms.putdata - Function Contents Index

	Package	general
	Module	ms
	Tool	ms