[daip] VPLOT model plot.
Eric Greisen
egreisen at nrao.edu
Thu Jul 10 10:38:48 EDT 2008
Craig Walker wrote:
> When plotting models on the data with VPLOT with NMAPS < 0 for a smooth
> plot, the model is there most, but not all, of the time. There seem to
> be periods when it just stops being plotted. This is for phase. The
> vanished model seems to be for periods when the absolute value of the
> phase would be above about 100 deg (happens on both sides of zero).
> When self scaling, it sometimes plots the data on a range up to over 400
> degrees and, in those cases, very little of the model shows, so I think
> this is consistent with staying between -100 and +100.
>
> This is happening on my Linux box with data on Fred's box. Since this
> is a fixed machine at NRAO, I presume the midnight job is up-to-date.
>
> The data are on SUM-FDAVIES_1 under user 542. This is plotting of a CC
> table attached to a UV data set.
>
> You might hear more later about the amplitudes as the model from UVFIT
> doesn't match the data at all. But I just noticed that and haven't got
> it figured out yet.
>
> Cheers,
>
> Craig
>
> Here are the inputs:
>
> inp vplot
> AIPS 1: VPLOT Plots data from a u,v data base, model from a CC file
> AIPS 1: Adverbs Values Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: USERID 0 Data base owner number
> AIPS 1: INNAME 'BW090LM84' Input UV file name (name)
> AIPS 1: INCLASS 'SPLIT4' Input UV file name (class)
> AIPS 1: INSEQ 1 Input UV file name (seq. #)
> AIPS 1: INDISK 3 Input UV file disk unit #
> AIPS 1: IN2NAME 'BW090LM84' Input CC file name (name)
> AIPS 1: IN2CLASS 'SPLIT4' Input CC file name (class)
> AIPS 1: IN2SEQ 1 Input CC file name (seq. #)
> AIPS 1: IN2DISK 3 Input CC file disk unit #
> AIPS 1: IN2VERS 1 Input CC file version #
> AIPS 1: NCOMP *all 0 # comps to use for model.
> AIPS 1: 1 value per field
> AIPS 1: total 25000 CCs maximum
> AIPS 1: FLUX 0 Lowest CC component used.
> AIPS 1: NMAPS -1 # clean maps (fields).
> AIPS 1: 0 => no model
> AIPS 1: >0 => model at samples
> AIPS 1: <0 => model smoothly
> AIPS 1: Data selection:
> AIPS 1: SOURCES *all ' ' Source list
> AIPS 1: QUAL -1 Source qualifier -1=>all
> AIPS 1: CALCODE ' ' Calibrator code ' '=>all
> AIPS 1: SELBAND -1 Bandwidth to select (kHz)
> AIPS 1: SELFREQ -1 Frequency to select (MHz)
> AIPS 1: FREQID 0 Freq. ID to select.
> AIPS 1: BCHAN 1 Lowest channel number 0=>1
> AIPS 1: ECHAN 1 Highest channel number
> AIPS 1: AVGCHAN 1 > 0 => average BCHAN-ECHAN
> AIPS 1: BIF 1 Lowest IF number 0=>1
> AIPS 1: EIF 2 Highest IF number 0=>high
> AIPS 1: AVGIF 1 > 0 => average IFs
> AIPS 1: CROWDED 3 Plot chans/IFs together or
> AIPS 1: separately? 0 separate,
> AIPS 1: 3 all together, 1 & 2 partly
> AIPS 1: DO3COL 1 Plot separate IFs in separate
> AIPS 1: colors.
> AIPS 1: XINC 0 Plot every XINC'th visibility
> AIPS 1: 0 => 1
> AIPS 1: UVRANGE 0 0 Range of projected spacings
> AIPS 1: (thousands of wavelengths)
> AIPS 1: TIMERANG *all 0 Time: start day,hr,min,sec
> AIPS 1: stop day,hr,min,sec.
> AIPS 1: STOKES 'I' Stokes' parameters
> AIPS 1: ANTENNAS *all 0 Antennas to be plotted
> AIPS 1: BASELINE 1 2 Baselines with ANTENNAS
> AIPS 1: 3 4 See explanation.
> AIPS 1: 5 6 7 8
> AIPS 1: 9 *rest 0
> AIPS 1: DOCALIB 0 > 0 calibrate data & weights
> AIPS 1: > 99 do NOT calibrate weights
> AIPS 1: GAINUSE -1 CL (or SN) table to apply
> AIPS 1: DOPOL -1 If >0 correct polarization.
> AIPS 1: BLVER -1 BL table to apply.
> AIPS 1: FLAGVER -1 Flag table version
> AIPS 1: See explanation.
> AIPS 1: DOBAND -1 If >0 apply bandpass cal.
> AIPS 1: Method used depends on value
> AIPS 1: of DOBAND (see HELP file).
> AIPS 1: BPVER 0 Bandpass table version
> AIPS 1: SMOOTH *all 0 Smoothing function. See
> AIPS 1: SUBARRAY 0 Subarray number 0=>1.
> AIPS 1: -1 => all, but beware!
> AIPS 1: DOEBAR -1 If > 0, plot error bars,
> AIPS 1: else don't
> AIPS 1: SOLINT 0.4 Time over which to average
> AIPS 1: data before plotting (mins)
> AIPS 1: =0 => no averaging
> AIPS 1: >0 SOLINT=MIN(SOLINT, SCAN)
> AIPS 1: <0 SOLINT=ABS(SOLINT)
> AIPS 1: average through scans
> AIPS 1: OPTYPE ' ' 'AUTO' => autocorrelation
> AIPS 1: else =>crosscorrelation
> AIPS 1: OPCODE ' ' Type of plot:
> AIPS 1: 'IFRA' => ratio BIF and EIF
> AIPS 1: else => plot requested IF
> AIPS 1: APARM *all 0 Control parameters
> AIPS 1: 1 : > 0 => edit bad
> AIPS 1: amplitude points.
> AIPS 1: BPARM(2)=0, or 1
> AIPS 1: = 0 => do not edit
> AIPS 1: bad amplitude points.
> AIPS 1: Number of averaged points
> AIPS 1: for each baseline has to
> AIPS 1: be more than 10.
> AIPS 1: 2 : number of sigmas outside
> AIPS 1: of which bad points are
> AIPS 1: clipped (See HELP); 0=>3.
> AIPS 1: 3 : > 0 plot min/max range
> AIPS 1: with average
> AIPS 1: = 0 do not plot min/max
> AIPS 1: lines
> AIPS 1: 4 : = 0 min/max over selected
> AIPS 1: IFs after averaging
> AIPS 1: selected CHs
> AIPS 1: > 0 min/max over all
> AIPS 1: selected CH/IFs
> AIPS 1: 5 : > 0 scalar average
> AIPS 1: = 0 vector average
> AIPS 1: 6 : used with APARM(1)>0
> AIPS 1: >0 flag the bad points
> AIPS 1: for all channels
> AIPS 1: =0 flag the bad points
> AIPS 1: only for the selected
> AIPS 1: channels
> AIPS 1: 7 : est total plot points
> AIPS 1: BPARM 12 2 Control parameters
> AIPS 1: 2 : Y-axis type code;
> AIPS 1: if <0 => AMP & PHASE
> AIPS 1: plotted together
> AIPS 1: 3 : >0.0 => fixed scale
> AIPS 1: <0.0 => fixed range
> AIPS 1: 0.0 => sep. scales
> AIPS 1: 4 : Xmin (fixed scale)
> AIPS 1: 5 : Xmax (fixed scale)
> AIPS 1: 6 : Ymin (fixed scale)
> AIPS 1: 7 : Ymax (fixed scale)
> AIPS 1: 8 : PHmin (fixed scale)
> AIPS 1: 9 : PHmax (fixed scale)
> AIPS 1: 10: > 0 -> plot models for
> AIPS 1: baselines with no data
> AIPS 1: ALIAS *all 0 Antenna alias selection
> AIPS 1: If ALIAS(1) is non-zero, any
> AIPS 1: antennas matching ALIAS(2-30)
> AIPS 1: are treated as if they were
> AIPS 1: actually ALIAS(1)
> AIPS 1: REFANT 0 > 0 -> use REFANT for hour
> AIPS 1: angle, elevation, et al.
> AIPS 1: NPLOTS 9 Max number of plots per page.
> AIPS 1: 0 => 3; If bparm(2)<0 =>
> AIPS 1: Max number of pairs of plots.
> AIPS 1: DOARRAY 0 Array type : 0 = VLBI
> AIPS 1: 1 = VLA and ATCA;
> AIPS 1: 2 = MERLIN; 3 = WSRT
> AIPS 1: POLPLOT ' ' Option to display various
> AIPS 1: ratios of polarizations:
> AIPS 1: 'RL/RR', 'RL/LL', 'LR/RR',
> AIPS 1: 'LR/LL', 'RR/LL' 'LL/RR';
> AIPS 1: 'Q/I', 'U/I', 'V/I'.
> AIPS 1: other = plot data directly
> AIPS 1: SYMBOL 23 Symbol to use when plotting.
> AIPS 1: 0 => Vertical line
> AIPS 1: 1 - 23, standard types
> AIPS 1: FACTOR 0 Scale symbol by FACTOR
> AIPS 1: LTYPE 4 Type of labeling: 1 border,
> AIPS 1: 2 no ticks, 3 - 6 standard,
> AIPS 1: 7 - 10 only tick labels
> AIPS 1: <0 -> no date/time
> AIPS 1: DOTV 1 > 0 Do plot on the TV, else
> AIPS 1: make a plot file
> AIPS 1: GRCHAN 0 Graphics channel 0 => 1.
>
>
>
>
If you tell me that NMAPS > 0 is not working I will be interested.
NMAPS < 0 is only expected to work once in a while.
Eric Greisen
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