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Basic Information on smavarplt
Task: smavarplt
Purpose: Plot and list variables.
Categories: plotting
SmaVarPlt is a MIRIAD task which plots and lists variables from a
uv file. Maximum number of sources in the uvdata must be less
than 100. The data points are color-coded for each of the
sources if the total number of source is less than or equal
to 48. If the total number of sources exceeds 48, the data
points are plotted in mono-color.
Key: vis
The name of the input data-set. No default.
Key: device
The PGPLOT plotting device to use. The default is no plot.
Key: log
The log to give a listing of the variables. The default is no log.
Key: ylen
The length of the y-axis variable to write in log including
the space. The default is 12.
Key: xaxis
Variable to plot on the X axis. Default is "time".
Key: yaxis
Variable to plot on the Y axis. No default.
Key: nxy
Number of plots in the x and y directions. The default varies.
Key: xrange
The min and max range along the x axis of the plots. The default
is to autoscale. Note that for "time" should be given in normal Miriad
time format (either absolute time or time-of-day).
Key: yrange
The min and max range along the y axis of the plots. The default
is to autoscale. Note that for "time" should be given in normal Miriad
time format (either absolute time or time-of-day).
Key: dotsize
Allows users to choose a symbol (dot) size in a range between
1-201. The actual plotted dot size depends on the device
resolution. Other internal symbol selecting function
would be failed when this parameter is in use.
Default is to disable this function.
Key: options
Extra processing options. Several can be given, separated by
commas. Minimum match is used.
"dtime" If the x-axis is "time", plot the time in fractions
of a day. The default is to plot in hh:mm:ss.
"compress" If the variable is a 2D array of values, average
the variables along the second dimension.
"overlay" By default, when a variable takes on several values,
each is plotted on a separate plot. The overlay
option makes a single plot.
"unwrap" Unwrap the phases on the yaxis variable. Cannot unwrap
an xaxis variable. By default phases are not unwrapped.
"all" uses all data associated with flagged and unflagged
visibilties. The default uses only unflagged
(good) data.