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significance of a linear regression [message #53380]

Fri, 06 April 2007 13:46

jochem.verelst@gmail. is currently offline

jochem.verelst@gmail.
Messages: 19
Registered: January 2007

Junior Member

Hi IDL gurus,

I am much in favor of the IDL way, but being a newbie, it still causes
me big headache.

So this is the question:

Just as in SPSS, I wanted calculate the significance of linear
regression. The function REGRESS is very handy, as it also provides
the F-value by means of the keyword FTEST. Luckily this is the same F-
value as calculated in SPSS ( I just tested). However, SPSS also
provides the congruent p-value. And this is what matters to have an
idea of the significance. REGRESS does not provide such a keyword. So,
has anyone an idea how to calculate the significance of a linear
regression?

That would help me a lot further.
Thanks a lot, Jochem

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