Cumulative Function
Will ?cumsum help? Sean
On 8/26/05 5:15 AM, "Mark Miller" <mmiller at nassp.uct.ac.za> wrote:
I was wandering if anyone cold advise me on a good algorithm to turn a set of data from its original for into its cumulative form. I have written a piece of code that takes the data and does essentially what a histogram function would do, except add to the new bin the sum in the previous bin. Once that is done I divide by the frequency in the last bin plus 1. I know the ecdf() function exists in R, but I want to use it to fit the cumulative distributions to the data and ecdf() produces a non-subscriptable vector and so fitdistr() cannot be used on it. Thanks for any help you can give Mark Miller
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