Usage for scaleweights

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This function will scale all of the data weights in a specified ms. See also resetweights, copyweights and scaleWeightSpectrum.

Usage:

         au.scaleweights(msfile, wtfac=1.0, antenna='', square=False, squareroot=False, spw='')
  • wtfac = multiplicative weight factor
  • antenna = restrict scaling to baselines including this single antenna ID (int or string)
  • square = Boolean, if True, then square the weights (ignoring wtfac)
  • squareroot = Boolean, if True, then take the square root of the weights (ignoring wtfac)
  • spw = integer or string or list of spws to process (default = '' which means all)
Created S.T. Myers 2011-08-23 v1.0 from flagaverage.py (CAS-2422)

Example:

CASA <2>: au.scaleweights('uid___A002_X3fdb4f_X463_copy.ms',wtfac=2,antenna=0)
Will scale weights by a factor of 2
Found 13 DataDescription IDs
Scaled 2146 spectral points in 34336 rows in DD=0
Scaled 2400 spectral points in 10200 rows in DD=1
Scaled 4800 spectral points in 20400 rows in DD=2
Scaled 2400 spectral points in 10200 rows in DD=3
Scaled 4800 spectral points in 20400 rows in DD=4
Scaled 2400 spectral points in 10200 rows in DD=5
Scaled 4800 spectral points in 20400 rows in DD=6
Scaled 2400 spectral points in 10200 rows in DD=7
Scaled 4800 spectral points in 20400 rows in DD=8
Scaled 36768 spectral points in 156264 rows in DD=9
Scaled 73536 spectral points in 312528 rows in DD=10
Scaled 36768 spectral points in 156264 rows in DD=11
Scaled 73536 spectral points in 312528 rows in DD=12
Scaled Total 251554 spectral points in 1094320 rows

-- ToddHunter - 2012-01-22
Topic revision: r10 - 2016-04-11, ToddHunter
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