unvec_mat {fMRItools} | R Documentation |
Transform vector data to image
Description
From a v \times p
matrix of vectorized data and an m \times n
image mask with v
in-mask locations, create a list of p
m \times n
data arrays in which the mask locations are filled
in with the vectorized data values.
Consider using abind::abind
to merge the result into a single
array.
Usage
unvec_mat(x, mask, fill_value = NA)
Arguments
x |
|
mask |
|
fill_value |
Out-of-mask value in the output image. Default:
|
Value
A list of masked values from x
Examples
x <- unvec_mat(
cbind(seq(3), seq(2,4), seq(3,5)),
matrix(c(rep(TRUE, 3), FALSE), ncol=2),
0
)
y <- array(c(1,2,3,0,2,3,4,0,3,4,5,0), dim=c(2,2,3))
stopifnot(identical(x[[1]], y[,,1]))
stopifnot(identical(x[[2]], y[,,2]))
stopifnot(identical(x[[3]], y[,,3]))
[Package fMRItools version 0.4.7 Index]