cumulative histogram

peake · Post by **peake** » Wed Jun 16, 2004 7:22 pm

I would like to be able to create cumulative histogram.
Could you please to consider to include normalized counts for the histograms menu and macros.
Thank you.
Alexandre

Post by **DPlotAdmin** » Thu Jun 17, 2004 12:08 am

Creating a cumulative histogram will not be a problem and can be an option in the generation of the histogram or an option after the histogram is created.

It may seem strange, but normalizing a histogram is actually more of a problem. Making that an option on creation is no problem, but if doing so after the histogram is created it won't be clear what should be done because as far as DPlot is concerned at that point, a histogram is simply a bar chart, and the amplitudes are not necessarily integer values. I'll give this one some thought, though.

If you created the histogram yourself in DPlot then you can easily normalize the amplitudes yourself by using Edit>Operate on Y, with Y=Y/N, where N is the total number of samples in the original data.

peake · Post by **peake** » Thu Jun 17, 2004 3:31 am

My original data files have different number of samples N and I would like to use macors to created cumulative histogram in DPlot.
To normalized count Im using Y=(Y/N)*(bin width).

Alexandre