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Re: 5th & 95th Percentiles [message #58688 is a reply to message #58677]

Wed, 13 February 2008 09:04

Spon
Messages: 178
Registered: September 2007

Senior Member

On Feb 13, 4:10 pm, Vince Hradil <hrad...@yahoo.com> wrote:
> On Feb 13, 9:58 am, chloesharro...@gmail.com wrote:
>
>> Hello
>
>> I have an array of data which is not in order and need to find the 5th
>> & 95th percentile of this data. Is there an easy way to do this? I
>> will eventually need it to be extended to a for loop that works
>> through multiple arrays each of which have a different number of data
>> contained within them.
>
>> Thanks
>> Chloé
>
>> PS. I'm very inexperienced with IDL so the simpler the better!
>
> I use this:http://www.fz-juelich.de/icg/icg-1/idl_icglib/idl_sourc e/idl_lib/Mart...

pc5 = Data( (SORT(Data) ) (5 * N_ELEMENTS(Data) / 100) )
pc95 = Data( (SORT(Data) ) (95 * N_ELEMENTS(Data) / 100) )

This is blatant thievery on my part from an old newsgroup thread.
Try searching the old posts for Stein Vidar to whom all credit should
go! :-)

Good luck!
Chris

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[Message index]

		Re: 5th & 95th Percentiles By: Maarten[1] on Thu, 14 February 2008 01:04
		Re: 5th & 95th Percentiles By: Spon on Wed, 13 February 2008 09:04
		Re: 5th & 95th Percentiles By: chloesharrocks on Wed, 13 February 2008 08:19
		Re: 5th & 95th Percentiles By: Vince Hradil on Wed, 13 February 2008 08:10

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