Manpage of smauvamp
Section: User Commands (1)
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smauvamp - Analyses visibiliy amplitude by plotting data on a PGPLOT device.
uv analysis, plotting
smauvamp - Analyses visibiliy amplitude by plotting visibility data
with error bars for 1 standard deviation in the mean
if averaging is invoked.
The input visibility file(s). Multiple input files and wild card
card expansion are supported.
This is the normal linetype specification. See the help on "line"
for more information. The default is all channels.
This selects which visibilities to be used. Default is all
visibilities. See the Users Guide for information about how
to specify uv data selection.
Default is all data
Select Stokes parameter(s) or polarization(s) from:
xx, yy, xy, yx, i, q, u, v,
rr, ll, rl, lr
Default is all polarizations or Stokes parameters present
Two values (minimum match active), one for each of the x
and y axes chosen from:
time [time in DD HH MM SS.S format]
dtime [time in decimal days format]
amplitude, real, imag [natural units; Jy]
uc, vc [u,& v, -u & -v in klambda]
Defaults are axis=vc,amp (x and y axes).
Plot range in the x-direction
If axis = uc, vc, [kilo-lambda; 2 values]
unless OPTIONS=NANOSEC; then nanoseconds]
If axis = amplitude, real, imag [natural units; 2 values]
If axis = phase [degrees; 2 values]
If axis = time [dd,hh,mm,ss.s; 8 values]
If axis = dtime [decimal days; 2 values]
Default is to self-scale (see also OPTIONS=XIND).
Plot range in the y-direction as for the x axis. The
default is to self-scale (see also OPTIONS=YIND).
The averaging time in minutes.
Averaging is reset at frequency, source, or pointing centre
changes. Individual baselines and polarizations are averaged
separately. If you have selected multiple
channels and you also ask for time averaging, then all the
selected channels are averaged together in the time interval.
The vector averaging for the visibility in a time interval
is done before data is binned if nbin > 0 is selected.
Default is no averaging.
Number of bins in xrange for xaxis.
If average > 0, the weighting in the bin statistics utilizes
the rms of the variables for axis = amplitude, real, imag and phase.
Default is no bin.
Task enrichment options. Minimum match is effective.
nocal Do not apply the gain corrections
nopol Do not apply the polarization leakage corrections
nopass Do not apply the bandpass corrections
nofqav By default, uvplt averages together all channels from
a visibility record before plotting. The nofqav option
disables this, and causes individual channels to be
all Plot flagged and unflagged visibilties
flagged Plot only flagged visibilities
The default is to plot only unflagged (good) visibilities
ALL overrides FLAGGED
nanosec u and v are plotted in nano-seconds rather than k-lambda
xind If the x-axis is self-scaled, then unless OPTIONS=NOBASE,
setting XIND will cause each sub-plot to have the x-axis
self-scaled independently. The default is that the x-range
used is that which encompasses the ranges from all sub-plots.
yind The equivalent for the y-axis
equal Plot x and y with equal scales. Useful only for plots
like AXIS=UU,VV. Does not mean the plot will necessarily
zero Plot the x=0 and y=0 lines
symbols Each file is plotted with a different plot symbol
Each file is plotted with the same colour (white). By
default and when there is only one polarization, each
file has a separate colour.
source Put the source name rather than the file name in the
inter After the plot is drawn, you get a chance to redraw
the plot with a different x- and y-range, and also
on a different device. In this way you can make a
hard-copy without re-running the program. In this case,
points outside of the user specified x,y-range are
ARE included in the plot buffer, so that if you redefine
log Write the values that are
plotted into the log file.
The Position Angle (degree) for rotating the u-v plane.
If PA is not zero, the uv frame will rotates amount of
PA around the w axis in the case of xaxis=uc or vc.
PGPLOT plot device/type. No default.
PGPLOT character sizes, in units of the default size (i.e., 1)
First value is for the labels, the second is for the symbol size
Defaults depend upon the number of sub-plots. The second value
defaults to the first.
The output logfile name. The default is the terminal.
A one line comment which is written into the logfile.
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Time: 18:35:38 GMT, July 05, 2011