Histogram plot

After the "<Run>" button has been pressed and no errors are encountered, the PULSAR window title bar will be grayed out and the cursor will become inactive as the program calculates phases. For large files, the processing may take some time. The resulting histogram will be plotted below the input panel. The pulsar name, period, period derivative, position, and reference epoch values will appear in the plot annotation. In addition, the source file, start and end times of observation, energy, incoming angle, and zenith angle limits, number of bins, and total number of counts will be listed. The results of the tests for uniformity will be displayed on the side along with the time between the reference epoch and the reference radio peak and the corresponding phase location of the radio peak. When the processing is finished, the PULSAR window title bar will return to normal, and the cursor will become active again. If the "<Print Histogram...>" button is pushed, the user will be asked to confirm sending the PostScript version of the plot to either the default or to the color printer specified by the environmental variable $EGRET_PRINTER. The temporary PostScript file containing the histogram plot is stored in /tmp/histogram.XXXXXX where XXXXXX is a unique suffix. It is removed when the "<Quit>" button is pushed, so if the original PostScript file is desired, it must be copied from the /tmp directory before quitting the program. If the PULSAR window is resized, the current histogram will automatically be rescaled; the PostScript output will not be affected.