Gnuplot: plotting histograms by binning in X and summing in Y

Asked Jul 12 '17 at 16:37

Active Jul 12 '17 at 16:37

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I am trying to plot a binned version of my data file in gnuplot.

My data file looks like this:

Y-values    X-values 
5             0.1
6             0.2
2             0.3
4             0.4

and so on. For some reason the standard order X-Y has been inverted (it is not me who produces the plot, I got it from some other source). I need to bin the data in such a way that the Y value is also considered, in the sense that if I group some X-values in a bin, I need to sum their respective Y-values up and associate the value I get to that bin. For example if my first bin would include 0.1 and 0.2 its associated y value would be 11, the sum of 5 and 6. I then need to plot the binned version of my data in Gnuplot. Is there a way to do this all-at-once in Gnuplot?

asked Jul 12 '17 at 16:37

johnhenry

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https://stackoverflow.com/q/2471884/2604213 – Christoph Jul 12 '17 at 16:48
@Christoph but this is assuming that you have in the first column the X values and in the second one the Y values, right? How to change it to my case? – johnhenry Jul 12 '17 at 17:33
In a `using` statement, the columns are referred by `$1`, `$2`, you can use them where you like! – Christoph Jul 13 '17 at 05:48

Gnuplot: plotting histograms by binning in X and summing in Y

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