| t {base} | R Documentation |
Matrix Transpose
Description
Given a matrix or data.frame x,
t returns the transpose of x.
Usage
t(x)
Arguments
x |
a matrix or data frame, typically. |
Details
A data frame is first coerced to a matrix: see as.matrix.
When x is a vector, it is treated as “column”, i.e., the
result is a 1-row matrix.
See Also
aperm for permuting the dimensions of arrays.
Examples
a <- matrix(1:30, 5,6)
ta <- t(a) ##-- i.e., a[i, j] == ta[j, i] for all i,j :
for(j in seq(ncol(a)))
if(! a[, j] == ta[j, ]) stop("wrong transpose")