STScI Logo

dofitplot xray.xspectral


NAME · USAGE · DESCRIPTION · PARAMETERS · EXAMPLES · TIME_REQUIREMENTS
SEE_ALSO

NAME

dofitplot -- An IRAF script that runs fit and count_plot on an observed spectrum

USAGE

dofitplot observed model print_table print_plot

DESCRIPTION

This task computes the best predicted fit to the observed data spectrum using fit and then plots the best fit predicted and observed spectrum using count_plot.

PARAMETERS

observed = "" observed spectrum [root_obs.tab]

The file name of the observed data sets on which the fit is to be performed. Normally these files have a "_obs.tab" extension. This extension need not be input explicitly. (See fit.)

model = "" spectral model descriptor

The ASCII model descriptor. (See fit.)

print_table = "no" [boolean]

Generate hardcopy of spectral table.

print_plot = "no" [boolean]

Generate hardcopy of plot.

EXAMPLES

The following example finds the best fit to the observed data set "snr" for a power law model with energy index in the range (3.0:8.0), and plots the observed and predicted spectral. No hard copies will be printed for either the table or the plot.

xs> dofitplot "snr" "abs(21:23)*pow(3.0:8.0)" no no

TIME REQUIREMENTS

Execution time is dependent upon the number of "free" parameters defined for the fit.

SEE ALSO

fit, counts_plot


Source Code · Search Form · STSDAS