Hi,
We have experimented a little with different ways of computing the
p-values in a GLM analysis based on FreeSurfer data.
The way the Matlab reference implementation (fast_fratio.m) handles a
situtation where the residuals are exactly zero, seems to be to set
those vertices to F = 0 and p = 1.
When the residual variance is exactly 0, this is what the matlab code.
In the C implementation,
if (glm-rvar FLT_MIN) glm-rvar = FLT_MIN;
which will have similar results.
doug
Lars M. Rimol wrote:
Hi,
We have experimented a little with different ways of computing the
p-values in a GLM
