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Re: percentile with dimension keyword [message #76988 is a reply to message #76979]

Tue, 19 July 2011 07:34

Kim
Messages: 19
Registered: January 2009

Junior Member

On Jul 19, 9:42 am, Ben Tupper <ben.bigh...@gmail.com> wrote:
>
> Now that I think of it, have you searched for a function called
> percentile.pro? It might be worth looking for that as a starting point.
>
> Cheers,
> Ben

; PERCENTILE: This Function returns the Values of data Corresponding
to input Percentiles
; NOTE: The Values returned are linear interpolates of the
sorted data
; EXAMPLE: DATA=FINDGEN(1001) & PRINT,
PERCENTILE(DATA,PERCENT=[0,0.01,1,10,50,98,99.9,100.0])

FUNCTION PERCENTILE,DATA,PERCENT=PERCENT,MISSING=MISSING,ERROR=error

IF N_ELEMENTS(PERCENT) EQ 0 THEN PERCENT = FINDGEN(101)
INDEX = INTERPOL([0.0,100.0],N_ELEMENTS(DATA)) ; Normalize INDEX
FROM 0 to 100 percent
VALUES = INTERPOL(DATA(SORT(DATA)) ,INDEX , PERCENT)
IF N_ELEMENTS(VALUES) EQ 1 THEN RETURN, VALUES(0) ELSE RETURN,
VALUES

END

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[Message index]

		Re: percentile with dimension keyword By: JDS on Wed, 20 July 2011 13:00
		Re: percentile with dimension keyword By: JP on Wed, 20 July 2011 08:11
		Re: percentile with dimension keyword By: ben.bighair on Wed, 20 July 2011 07:03
		Re: percentile with dimension keyword By: JP on Tue, 19 July 2011 21:53
		Re: percentile with dimension keyword By: Kim on Tue, 19 July 2011 07:34
		Re: percentile with dimension keyword By: ben.bighair on Tue, 19 July 2011 06:42

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