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Re: newbie MOMENT question [message #6556]

Tue, 16 July 1996 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

demott@denali (Charlotte DeMott) wrote:
>
> Hi,
>
> I want to compute the mean and variance of a set of data points, and
> I'm using the MOMENT procedure to do it. With some fields, the
> variance is quite small (i.e., o(e-03)), so I get floating point
> underflow errors when MOMENT tries to compute the skewness and
> kurtosis. since i don't really care about the skewness and kurtosis,
> how can i get IDL to not worry about this, and continue with the
> rest of the procedure?

Try using

junk = CHECK_MATH( trap=0 )

to disable math traps.

Dave Foster
UCSD Brain Image Analysis Lab
foster@bial1.ucsd.edu

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		Re: newbie MOMENT question By: David Foster on Tue, 16 July 1996 00:00
		Re: newbie MOMENT question By: Liam Gumley on Mon, 15 July 1996 00:00

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