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

This is a generic function for which methods can be written. The description here applies to the default and "data.frame" methods.

A data frame is first coerced to a matrix: see as.matrix. When x is a vector, it is treated as a column, i.e., the result is a 1-row matrix.

### Value

A matrix, with dim and dimnames constructed appropriately from those of x, and other attributes except names copied across.

### Note

The conjugate transpose of a complex matrix A, denoted A^H or A^*, is computed as Conj(t(A)).

### References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

aperm for permuting the dimensions of arrays.
a <- matrix(1:30, 5, 6)