newflagdata

Synopsis Flag/Clip data based on selections Description

The task will select a subset of data explicitly for flagging (unflagging) or for clipping.


Inputs
vis	name of input visibility file
	allowed:	string
	Default:
setdata	Create a subset of the MS to operate on.
	allowed:	bool
	Default:	False
mode	manualflag,autoflag,summary,query,extend
	allowed:	string
	Default:
baseline	Select data based on baseline
	allowed:	string
	Default:
field	Select data based on field name or index
	allowed:	string
	Default:
correlation	Select data based on correlation
	allowed:	string
	Default:
spw	Select data based on spectral window and frequency/channel
	allowed:	any
	Default:	variant
uvrange	Select data based on uv range
	allowed:	string
	Default:
selecttime	Select data based on time
	allowed:	string
	Default:
scan	Select data based on scan number
	allowed:	string
	Default:
feed	Select data based on feed number
	allowed:	string
	Default:
array	Select data based on the array
	allowed:	string
	Default:
setclip	Setup Clipping [clipexpr,[min,max],outside(T/F)]
	allowed:	string
	Default:
setquack	Setup VLA Quack [quack interval, quack length] - NOT TESTED
	allowed:	record
	Default:
autocorr	Flag autocorrelations
	allowed:	bool
	Default:	False
unflag	Unflag the data specified
	allowed:	bool
	Default:	False
flagcorr
	allowed:	string
	Default:	Select flags based on correlation
flagfield	Select flags based on field name or index
	allowed:	string
	Default:
flaguvrange	Select flags based on uv range - NOT IMPLEMENED
	allowed:	string
	Default:
flagtime	Select flags based on time
	allowed:	string
	Default:
flagscan	Select flags based on scan number - NOT IMPLEMENTED
	allowed:	string
	Default:
flagfeed	Select flags based on feed number - NOT IMPLEMENTED
	allowed:	string
	Default:
flagarray	Select flags based on the array - NOT IMPLEMENTED
	allowed:	string
	Default:

Flag/Clip data based on selections:
The task will select a subset of data explicitly for
flagging (unflagging) or for clipping.

Keyword arguments:
vis -- Name of input visibility file (MS)
default: none example: vis=’ngc5921.ms’
        setdata -- Create a subset of the MS to operate on.
                default: ’False’ : operate on the entire MS
        mode -- Mode of operation.
                options: ’manualflag’,’autoflag’,’summary’,’query’,’extend’,’run’
baseline -- Select data based on baseline
default: ’’ (all); example: baseline=’5&6’ baseline 5-6
baseline=’5&6;7&8’ #baseline 5-6 and 7-8
baseline=’5’ # all baselines with antenna 5
baseline=’5,6’ # all baselines with antennas 5 and 6
spw -- Select data based on spectral window and channels
default: ’’ (all); example: spw=’1’
spw=’<2’ #spectral windows less than 2
spw=’>1’ #spectral windows greater than 1
                spw=’0:0~10’ # first 10 channels from spw 0
                spw=’0:0~5;56~60’ # multiple separated channel chunks.
        correlation -- Correlation types
                default: ’’ (all);
                example: correlation=’RR,LL’
field -- Select data based on field id(s) or name(s)
default: ’’ (all); example: field=’1’
                field=’0~2’ # field ids inclusive from 0 to 2
field=’3C*’ # all field names starting with 3C
uvrange -- Select data based on uvrange(s)
default: ’’ (all); example:
uvrange=’0~1000’ # uvranges from 0-1000 meters
uvrange=’>4kl’ #uvranges greater than 4 kilo lambda
selecttime  -- Select data based on time range:
        default = ’’ (all); example,
selecttime = ’YYYY/MM/DD/hh:mm:ss~YYYY/MM/DD/hh:mm:ss’
Note: YYYY/MM/DD can be dropped as needed:
selecttime=’09:14:0~09:54:0’ # this time range
selecttime=’09:44:00’ # data within one integration of time
selecttime=’>10:24:00’ # data after this time
selecttime=’09:44:00+00:13:00’ #data 13 minutes after time
scan -- Select data based on scan number - New, under developement
default: ’’ (all); example: scan=’>3’
feed -- Selection based on the feed - NOT IMPLEMENTED YET
        array -- Selection based on the antenna array - NOT IMPLEMENTED YET

        setclip -- Setup Clip operation. Flag OUTSIDE this range
                [clipexpr, clipminmax,outside]
                default: [’ABS I’,[],True]
        clipexpr -- Clip using the following:
         default: ’ABS I’; example: clipexpr=’RE XX’
         Options: ’ABS’,’ARG’,’RE’,’IM’,’NORM’ + ’ ’ +  ’I’,’XX’,’YY’,’RR’,’LL’
        clipminmax -- Range of data (Jy) that will NOT be flagged
         default: [] means do not use clip option
         example: [0.0,1.5]
                outside -- Clip OUTSIDE the range ?
                        default: True
                        example: False -> flag data WITHIN the range.
        setquack -- [Scan Interval, Quack length] for VLA quack-flagging
                     default: [] means do not use quack option
                     example: [15,2]
        autocorr -- Flag autocorrelations ?
                default: False
                options: True,False
unflag -- Unflag the data
default: False (i.e. flag); example: unflag=True

0.1.45 newflagdata