QDRAW - Draw a data set with plus or minus 5 sigma range

Description:

This program uses KAPPA routines to calculate mean and standard deviation of an NDF. It then uses linplot to display the data with a range of plus or minus 5 sigma. Optionally, drawsig can be used to overlay 3 sigma lines.

Usage:

qdraw [-noline] NDF [Linplot/Stats/Drawsig parameters]

Parameters:

-noline

A Unix-type switch which controls whether the 3 sigma lines are displayed or not.

NDF (Given)

The required dataset

ADAM parameters = Any

Any parameters accepted by the individual routines as long as they use PARAM=VALUE format.

Examples:

qdraw test

Draws test.sdf with a scale of $\pm5$ sigma and draws lines at $\pm3$ sigma.

qdraw -noline test

Same as above but without the 3 sigma lines

qdraw mode=2 test

Plot the data using `$+$' symbols (linplot mode 2)

qdraw mode=2 sigcol=red test

Plot with `$+$' symbols and use red lines to show the $\pm3$ sigma lines.

Notes:

The $KAPPA_DIR environment variable must point to the location of the KAPPA binaries (this is usually done during a Starlink login).

Related Applications

SURF: scucat, scuphot;
KAPPA: stats, linplot, drawsig