Column-wise minimum and maximum of a matrix
Column-wise minimum and maximum of a matrix.
colMins(x, value = FALSE, parallel = FALSE) colMaxs(x, value = FALSE, parallel = FALSE) colMinsMaxs(x)
x |
A numerical matrix with data. |
value |
If the value is FALSE it returns the indices of the minimum/maximum, otherwise it returns the minimum and maximum values. |
parallel |
Do you want to do it in parallel in C++? TRUE or FALSE. The parallel will return the minimum/maximum value only. It will never return the indices. |
A vector with the relevant values.
Manos Papadakis
R implementation and documentation: Manos Papadakis <papadakm95@gmail.com>.
x <- matrix( rnorm(100 * 200), ncol = 200 ) s1 <- colMins(x) s2 <- apply(x, 2, min) s1 <- colMaxs(x) s2 <- apply(x, 2, max) s1 <- colMinsMaxs(x) s2 <- c(apply(x, 2, min), apply(x, 2, max)) x<-s1<-s2<-NULL
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