Column and row-wise medians
Column and row-wise medians of a matrix.
colMedians(x,na.rm = FALSE, parallel = FALSE) rowMedians(x,na.rm = FALSE, parallel = FALSE)
x |
A matrix with the data. |
parallel |
Do you want to do it in parallel in C++? TRUE or FALSE. |
na.rm |
TRUE or FAlSE for remove NAs if exists. |
The functions is written in C++ in order to be as fast as possible.
A vector with the column medians.
R implementation and documentation: Manos Papadakis <papadakm95@gmail.com>.
x <- matrix( rnorm(100 * 100), ncol = 100 ) a <- apply(x, 2, median) b1 <- colMedians(x) all.equal(as.vector(a), b1) x<-a<-b1<-NULL
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