33 lines
1 KiB
R
33 lines
1 KiB
R
#' @title Minimum (MATLAB version)
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#' @description Finds the minimum value for each column of a matrix, potentially returning the indices instead
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#' @param X matrix
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#' @param indices return indices?
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#' @return Either a list or a vector
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#' @author Waldir Leoncio
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min_MATLAB <- function(X, indices = TRUE) {
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if (!is(X, "matrix")) X <- as.matrix(X)
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mins <- apply(X, 2, min)
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idx <- sapply(seq_len(ncol(X)), function(x) match(mins[x], X[, x]))
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if (indices) {
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return(list(mins = mins, idx = idx))
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} else {
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return(mins)
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}
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}
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#' @title Maximum (MATLAB version)
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#' @description Finds the minimum value for each column of a matrix, potentially returning the indices instead
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#' @param X matrix
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#' @param indices return indices?
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#' @return Either a list or a vector
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#' @author Waldir Leoncio
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max_MATLAB <- function(X, indices = TRUE) {
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if (!is(X, "matrix")) X <- as.matrix(X)
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maxs <- apply(X, 2, max)
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idx <- sapply(seq_len(ncol(X)), function(x) match(maxs[x], X[, x]))
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if (indices) {
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return(list(maxs = maxs, idx = idx))
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} else {
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return(maxs)
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}
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}
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