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5th & 95th Percentiles [message #58692]

Wed, 13 February 2008 07:58

chloesharrocks
Messages: 16
Registered: January 2008

Junior Member

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!

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Re: 5th & 95th Percentiles [message #90729 is a reply to message #58692]

Tue, 07 April 2015 06:54

atmospheric physics is currently offline

atmospheric physics
Messages: 121
Registered: June 2010

Senior Member

If 'a' is your data array, then you can compute the 5th and 95th percentile of the data array 'a' as given below:

IDL> a = 0.01*FINDGEN(101)
IDL> print, cgPercentiles(a, Percentiles=[0.05,0.95])

Hope this helps,
Best wishes,
Madhavan

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