pha_center

pha_center

stsdas.hst_calib.hrs.z_calib

pha_center

NAME · USAGE · DESCRIPTION · PARAMETERS · EXAMPLES · BUGS · REFERENCES
HELP · SEE_ALSO

NAME

pha_center -- Plot a histogram of all Gaussian centers found by the phaz task.

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

PARAMETERS

(table = "") [file name]: The 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 used 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 the number of diodes drawn as the task progresses?

EXAMPLES

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

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

2. Produce the Gaussian center 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_center table=phaz_old  device=stdplot