a character string or a character vector of length two giving the name(s)
of the boundary rule. All the boundary rules listed for
convdown are
available except for
"infinite".
See
convdown for the definitions of these rules.
odd
logical flag indicating if the number of rows/columns of the outcome matrix
should be odd.
fast
logical flag indicating if fast algorithm should be used.
VALUE:
If
odd=FALSE,
hor.convup returns a
2nrow(x) by
ncol(x) matrix,
otherwise it returns a
2nrow(x)-1 by
ncol(x) matrix.
If
odd=FALSE,
ver.convup returns an
nrow(x) by
2ncol(x) matrix,
otherwise it returns an
nrow(x) by
2ncol(x)-1 matrix .