HELP · SEE_ALSO

## NAME

pha_rms -- Plot a histogram of root mean square error for all
Gaussian centers found by the `phaz` task.

## USAGE

`pha_rms`

## DESCRIPTION

`pha_rms` uses the output of the `phaz` task to plot a histogram of
the errors in
the Gaussian centers found for the differential pulse height
distributions. The histogram bins are the possible error values,
each bin containing the number of diodes which share the same
calculated error.

## PARAMETERS

- (table = "") [file name]
- Table containing the threshold statistics produced by the
`phaz`task. If this parameter is left blank, the table name will be taken from the`table`parameter in the`phaz`task.

- (device = "stdgraph") [string]
- Output device on which graphs will be printed.

- (left = 0.) [real]
- The left boundary on the graphics device, specified from 0. to 1., where the graphs will appear.

- (right = 1.) [real]
- The right boundary on the graphics device, specified from 0. to 1., where the graphs will appear.

- (bottom = 0.) [real]
- The bottom boundary on the graphics device, specified from 0. to 1., where the graphs will appear.

- (top = 1.) [real]
- The top boundary on the graphics device, specified from 0. to 1., where the graphs will appear.

- (verbose = yes) [real]
- Display number of diodes drawn as task progresses?

## EXAMPLES

1. Run the `phaz` task and then produce a histogram of all the
errors of the calculated gaussian centers on the `phaz` results.

cl> phaz z06i0501t.doh[*] z06i0501t.x0h[*] cl> pha_rms

2. Produce the error histogram on a different set of data,
contained in the files `intphd_old` and `phaz_old`.
Send the plots to the standard plot device.

cl> pha_rms table=phaz_old device=stdplot

## BUGS

## REFERENCES

Author: Jonathan Eisenhamer

## HELP

For assistance using this or any other tasks, please contact help@stsci.edu or call the help desk at 410-338-1082.

## SEE ALSO

phaz, pha_center, pha_diode, pha_sig2rms, pha_summary, pha_text