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s10
2012 Feb 27
1
How to incorporate interaction terms in MRM function of ecodist library?
...perfectly on
my explanatory matrices by adding a (+) sign as known. However, when I try
to use the (*) sign or (:) between two terms that I'd like to check the
interaction for, I get same results as with just additive model. Is there
something that I do wrong?
Thanks,
*For example: *
> mrm.S10z_A<- MRM(Adis ~ S10z.st+Distance.st, nperm=100)
> mrm.S10z_A
$coef
Adis pval
Int 0.553605282 0.06
S10z.st -0.002587542 0.86
Distance.st 0.028866573 0.07
$r.squared
R2 pval
0.004180399 0.060000000
$F.test
F F.pval
4.634535 0.060000...