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Re: moment functions with dimen keyword [message #63862 is a reply to message #63797]

Thu, 20 November 2008 06:45

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

On Thu, 20 Nov 2008, Paolo wrote:

> I have done the same last year with moment....
> and I am sure many others did! (to save execution
> time, I added a keyword maxmoment, such that it
> does not compute the kurtosis if I only need the average).

IDL 6.4's MOMENT has a MAXMOMENT keyword. Use the source, Luke!
(not the documentation :-)

regards,
lajos

; CALLING SEQUENCE:
; Result = Moment(X)
;
; INPUTS:
; X: An N-element vector of type integer, float or double.
;
; KEYWORD PARAMETERS:
; DOUBLE: IF set to a non-zero value, computations are done in
; double precision arithmetic.
;
; MDEV: Use this keyword to specify a named variable which returns
; the mean absolute deviation of X.
;
; SDEV: Use this keyword to specify a named variable which returns
; the standard deviation of X.
;
; MAXMOMENT:
; Use this keyword to limit the number of moments:
; Maxmoment = 1 Calculate only the mean.
; Maxmoment = 2 Calculate the mean and variance.
; Maxmoment = 3 Calculate the mean, variance, and skewness.
; Maxmoment = 4 Calculate the mean, variance, skewness,
; and kurtosis (the default).
;
; NAN: Treat NaN elements as missing data.
; (Due to problems with IEEE support on some platforms,
; infinite data will be treated as missing as well. )

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[Message index]

		moment functions with dimen keyword By: Jeremy Bailin on Wed, 19 November 2008 16:08
		Re: moment functions with dimen keyword By: Jeremy Bailin on Thu, 20 November 2008 14:27
		Re: moment functions with dimen keyword By: Jeremy Bailin on Fri, 21 November 2008 20:15
		Re: moment functions with dimen keyword By: Jeremy Bailin on Thu, 20 November 2008 12:47
		Re: moment functions with dimen keyword By: Spon on Thu, 20 November 2008 08:32
		Re: moment functions with dimen keyword By: Foldy Lajos on Thu, 20 November 2008 07:35
		Re: moment functions with dimen keyword By: pgrigis on Thu, 20 November 2008 07:22
		Re: moment functions with dimen keyword By: Foldy Lajos on Thu, 20 November 2008 06:45

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