NAME

pha_sig2rms -- Plot a histogram of signal-to-noise ratio for all the Gaussian centers found by the phaz task.

USAGE

pha_sig2rms

DESCRIPTION

pha_sig2rms uses the output of the phaz task to plot a histogram of signal-to-noise of the Gaussian centers found for the differential pulse height distributions. The Gaussian centers are simply divided by the sigma of the center. The histogram bins are the possible values, each bin containing the number of diodes which share the same ratio.

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 of the phaz task.

(device = "stdgraph") [string]

Output device on which to print the graphs.

(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 the task progresses?

EXAMPLES

1. Run the phaz task and then produce a histogram of all the signal-to-noise ratios of the calculated Gaussian centers on the phaz results.

cl> phaz z06i0501t.doh[*] z06i0501t.x0h[*]
cl> pha_sig2rms

2. Produce the signal-to-noise ratio 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_sig2rms 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_all, pha_center, pha_diode, pha_rms, pha_summary, pha_text