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Re: Histogram: Normalised Occurrence Frequency [message #59009]

Thu, 28 February 2008 07:50

pgrigis
Messages: 436
Registered: September 2007

Senior Member

hazel wrote:
> Hi All,
>
> I want to plot a histogram where the number of samples in each bin are
> normalised by the total number of samples across all bins.
>
> Currently I use David's 'HISTOPLOT' and the REVERSE_INDICIES keyword
> to get the indicies in each bin. Then Jaco's HISTOBIN to count these
> for each bin.
n_elements(your_input) is the total number of samples (unless you have
NANs as missing elements, in that case you may have to use the finite
function to find out
the number of non-NANs)

Paolo
>
> Then I normalise the bin totals and have to plot number of bins vs.
> normalised values using Plot and Psym=10.
>
> Is there an easier way to do this? Also how would I use HISTOPLOT to
> replot this normalised hist as I can't seem to get it to work.
>
> Thanks,
>
>
> Hazel

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		Re: Histogram: Normalised Occurrence Frequency By: pgrigis on Thu, 28 February 2008 07:50
		Re: Histogram: Normalised Occurrence Frequency By: David Fanning on Thu, 28 February 2008 07:43

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