casa5

import os

import re

import string

import time

import shutil

from taskinit import casalog, mstool, qa, tbtool, write_history

from update_spw import update_spwchan

from parallel.parallel_task_helper import ParallelTaskHelper

import partitionhelper as ph

​

def oldsplit(vis, outputvis, datacolumn, field, spw, width, antenna,

          timebin, timerange, scan, intent, array, uvrange,

          correlation, observation, combine, keepflags, keepmms):

    """Create a visibility subset from an existing visibility set:

​

    Keyword arguments:

    vis -- Name of input visibility file (MS)

            default: none; example: vis='ngc5921.ms'

    outputvis -- Name of output visibility file (MS)

                  default: none; example: outputvis='ngc5921_src.ms'

    datacolumn -- Which data column to split out

                  default='corrected'; example: datacolumn='data'

                  Options: 'data', 'corrected', 'model', 'all',

                  'float_data', 'lag_data', 'float_data,data', and

                  'lag_data,data'.

                  note: 'all' = whichever of the above that are present.

    field -- Field name

              default: field = '' means  use all sources

              field = 1 # will get field_id=1 (if you give it an

                          integer, it will retrieve the source with that index)

              field = '1328+307' specifies source '1328+307'.

                 Minimum match can be used, egs  field = '13*' will

                 retrieve '1328+307' if it is unique or exists.

                 Source names with imbedded blanks cannot be included.

    spw -- Spectral window index identifier

            default=-1 (all); example: spw=1

    antenna -- antenna names

               default '' (all),

               antenna = '3 & 7' gives one baseline with antennaid = 3,7.

    timebin -- Interval width for time averaging.

               default: '0s' or '-1s' (no averaging)

               example: timebin='30s'

    timerange -- Time range

                 default='' means all times.  examples:

                 timerange = 'YYYY/MM/DD/hh:mm:ss~YYYY/MM/DD/hh:mm:ss'

                 timerange='< YYYY/MM/DD/HH:MM:SS.sss'

                 timerange='> YYYY/MM/DD/HH:MM:SS.sss'

                 timerange='< ddd/HH:MM:SS.sss'

                 timerange='> ddd/HH:MM:SS.sss'

    scan -- Scan numbers to select.

            default '' (all).

    intent -- Scan intents to select.

            default '' (all).

    array -- (Sub)array IDs to select.

             default '' (all).

    uvrange -- uv distance range to select.

               default '' (all).

    correlation -- Select correlations, e.g. 'rr, ll' or ['XY', 'YX'].

                   default '' (all).

    observation -- Select by observation ID(s).

                   default '' (all).

    combine -- Data descriptors that time averaging can ignore:

                  scan, and/or state