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Plot of Power Spectra

   

It is possible to plot the output of the power spectra programs with the standard MIDAS commands for the plot of tables. With the use of the MIDAS command PLOT/HISTO applied to the 5th column of a ``segmented'' power spectrum it is possible to plot an occurrence histogram of the deviations from a random noise. However, to have a ``standard'' plot for the power spectra the command PLOT/POWER_SPECTRUM is available. This command produces a plot of the power spectrum table produced by either the LONG or the SEGMENTED option. It is possible to select either log-log (the default) or lin-lin plot. In the case of segmented power spectra, errors in both X and Y directions will be plotted. No errors will be plotted in the case of a long power spectrum, and the points will be connected with a solid line. WARNING: if the ``long'' power spectrum is too long, it is advisable not to plot it, but to use the command DETECT/PERIOD to identify significant bins. The syntax of the command is:

PLOT/POWER_SPECTRUM pow_table [linlog]
where pow_table is the name of the input table containing the power spectrum and linlog is L for logarithmic plot (default), N for linear plot.



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