filter.matrix(f, nrow=1, ncol=NULL, periodize=F, decimate=T)
periodize=F and
decimate=T.
FALSE; the filter is not periodized.
TRUE.
periodize=T and
decimate=T, returns an
nrow by
2nrow matrix;
if
periodize=T and
decimate=F, returns an
nrow by
nrow matrix;
if
periodize=F and
decimate=T, returns an
nrow by
ncol matrix,
where `ncol >= 2*nrow+m-2, m=length(f)'.
if
periodize=F and
decimate=F, returns an
nrow by
nrow+m-1 matrix;
When
decimate=T, the filter
f will be shifted by 2 to the right from the
previous row;
when
decimate=F, the filter
f will be shifted by 1 to the right from the
previous row.