Command summary

CLear

Immediately clear the graphics device.

COlor

Change the default colour index.

CONtour

Produce a contour plot.

CPD

Change the plotting device.

CQuit

Clear the graphics device and return control to XSPEC.

CSize

Change the default character size.

Error

Control whether errors are displayed and used in fitting.

EXit

Exit PLT and return control to XSPEC.

Fit

Fit the PLT model to the data.

FNy

Evaluate the model at the specified location.

FOnt

Change the default text font.

Freeze

Freeze a parameter value.

GAp

Change the default gap size between the data and the edge.

Grid

Control the location of the major and minor tic marks.

Hardcopy

Make a file that can later be printed.

HElp

Obtain help on any PLT command.

Imodel

Numerically integrate the model over specified range.

LAbel

Add or remove labels from the plot.

LIne

Control whether a line is used to connect data points.

LOg

Control whether data is plotted using a $\log_{10}$ scale.

LStyle

Change the default style of the line connecting the data points.

LWidth

Change the default line width.

MArker

Control whether the data points are plotted with markers.

MOdel

Define a PLT model.

Newpar

Change a parameter value associated with the model.

Plot

Immediately re-plot the data.

PRompt

Change the ``PLT>'' prompt.

Rescale

Reset the minimum and maximum plot range.

SCr

Change the color representation of the specified color index.

SHow

Display the values of PLT internal variables.

SKip

Control how PLT divides data into vectors.

STatistics

Compute various statistical properties of the data.

THaw

Allow a parameter value to vary during a fit.

Time

Control whether the time stamp is plotted.

Uncertainty

Compute the uncertainty in a parameter value.

VErsion

Display date of the most recent modification to PLT.

Viewport

Control the size of the viewport plotting area.

WData

Write a QDP data file to disk.

WEnviron

Write both QDP data and header files to disk.

WHead

Write a QDP header file to disk.

WModel

Write a model file to disk.

Xaxis

Define the method used to calculate the x-variable.

Yaxis

Define the y-axis scale for a contour plot.

$

Execute operating system commands.

@$\langle$filename$\rangle$

Read commands from a PLT command (.PCO) file.