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Automated iteration over multiple columns

If you want to create a histogram from many columns of data in a single file, it is very convenient to use the plot iteration feature. See iteration (p. [*]). For example, to create stacked histograms of the data in columns 3 through 8


     set style histogram columnstacked
     plot for [i=3:8] "datafile" using i title columnhead



2011-06-10