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library("matrixStats")
rowMins_R <- function(x, ..., useNames = TRUE) {
suppressWarnings({
res <- apply(x, MARGIN = 1L, FUN = min, ...)
})
if (!useNames) names(res) <- NULL
res
} # rowMins_R()
rowMaxs_R <- function(x, ..., useNames = TRUE) {
suppressWarnings({
res <- apply(x, MARGIN = 1L, FUN = max, ...)
})
if (!useNames) names(res) <- NULL
res
} # rowMaxs_R()
rowRanges_R <- function(x, ..., useNames = TRUE) {
suppressWarnings({
ans <- t(apply(x, MARGIN = 1L, FUN = range, ...))
})
# Preserve rownames attribute
dim <- c(dim(x)[1], 2L)
if (!isTRUE(all.equal(dim(ans), dim))) {
dim(ans) <- dim
rownames <- rownames(x)
if (!is.null(dimnames)) rownames(ans) <- rownames
}
if (!useNames) dimnames(ans) <- NULL
ans
} # rowRanges_R()
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# With and without some NAs
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
for (mode in c("integer", "double")) {
cat("mode: ", mode, "\n", sep = "")
for (add_na in c(FALSE, TRUE)) {
cat("add_na = ", add_na, "\n", sep = "")
x <- matrix(1:50 + 0.1, nrow = 10L, ncol = 5L)
if (add_na) {
x[3:7, c(2, 4)] <- NA_real_
}
storage.mode(x) <- mode
str(x)
# To check names attribute
dimnames <- list(letters[1:10], LETTERS[1:5])
# Test with and without dimnames on x
for (setDimnames in c(TRUE, FALSE)) {
if (setDimnames) dimnames(x) <- dimnames
else dimnames(x) <- NULL
# Row/column extremes
for (na.rm in c(FALSE, TRUE)) {
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
cat("na.rm = ", na.rm, "\n", sep = "")
# Ranges
cat("range:\n")
r0 <- rowRanges_R(x, na.rm = na.rm, useNames = useNames)
r1 <- rowRanges(x, na.rm = na.rm, useNames = useNames)
r2 <- colRanges(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(all.equal(r1, r2))
stopifnot(all.equal(r1, r0))
# Min
cat("min:\n")
m0 <- rowMins_R(x, na.rm = na.rm, useNames = useNames)
m1 <- rowMins(x, na.rm = na.rm, useNames = useNames)
m2 <- colMins(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(all.equal(m1, m2))
stopifnot(all.equal(m1, m0))
# Max
cat("max:\n")
m0 <- rowMaxs_R(x, na.rm = na.rm, useNames = useNames)
m1 <- rowMaxs(x, na.rm = na.rm, useNames = useNames)
m2 <- colMaxs(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(all.equal(m1, m2))
stopifnot(all.equal(m1, m0))
}
}
}
} # for (add_na ...)
} # for (mode ...)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# All NAs
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
for (mode in c("integer", "double")) {
cat("mode: ", mode, "\n", sep = "")
x <- matrix(NA_real_, nrow = 10L, ncol = 5L)
storage.mode(x) <- mode
str(x)
# Test with and without dimnames on x
for (setDimnames in c(TRUE, FALSE)) {
if (setDimnames) dimnames(x) <- dimnames
else dimnames(x) <- NULL
for (na.rm in c(FALSE, TRUE)) {
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
cat("na.rm = ", na.rm, "\n", sep = "")
r0 <- rowRanges_R(x, na.rm = na.rm, useNames = useNames)
r1 <- rowRanges(x, na.rm = na.rm, useNames = useNames)
r2 <- colRanges(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(all.equal(r1, r2))
stopifnot(all.equal(r1, r0))
}
}
}
} # for (mode ...)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Special cases
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Nx0 matrix
x <- matrix(double(0L), nrow = 5L, ncol = 0L)
r0 <- rowRanges_R(x)
#r1 <- rowRanges(x)
#r_truth <- matrix(c(Inf, -Inf), nrow = nrow(x), ncol = 2L, byrow = TRUE)
#stopifnot(all.equal(r1, r_truth))
# 0xN matrix
x <- t(x)
#r1 <- colRanges(x)
#stopifnot(all.equal(r1, r_truth))
# Nx1 matrix
x <- matrix(1:5, nrow = 5L, ncol = 1L)
# To check names attribute
dimnames <- list(letters[1:5], "A")
r1 <- rowRanges(x)
r_truth <- matrix(1:5, nrow = nrow(x), ncol = 2L, byrow = FALSE)
stopifnot(all.equal(r1, r_truth))
# Check names attribute
dimnames(x) <- dimnames
r0 <- rowRanges_R(x, useNames = TRUE)
r1 <- rowRanges(x, useNames = TRUE)
stopifnot(all.equal(r1, r0))
dimnames(x) <- NULL
# 1xN matrix
x <- t(x)
r1 <- colRanges(x)
stopifnot(all.equal(r1, r_truth))
# Check names attribute
dimnames(x) <- list("a", LETTERS[1:5])
r1 <- colRanges(x, useNames = TRUE)
stopifnot(identical(rownames(r1), colnames(x)))
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Additional tests with NA_integer_, NA_real, NaN, -Inf, +Inf
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
x <- matrix(1:12, nrow = 4L, ncol = 3L)
na_list <- list(
"integer" = matrix(1:12, nrow = 4L, ncol = 3L),
"integer w/ NA" = matrix(NA_integer_, nrow = 4L, ncol = 3L),
"real" = matrix(as.double(1:12), nrow = 4L, ncol = 3L),
"real w/ NA" = matrix(NA_real_, nrow = 4L, ncol = 3L)
)
na <- na_list[["real"]]
na[2, 2] <- NA
na_list[["real + NA cell"]] <- na
na <- na_list[["real"]]
na[2, ] <- NA
na_list[["real + NA row"]] <- na
na <- na_list[["real"]]
na[2, ] <- NaN
na_list[["real + NaN row"]] <- na
na <- na_list[["real"]]
na[2, 2] <- Inf
na_list[["real + Inf cell"]] <- na
na <- na_list[["real"]]
na[2, ] <- Inf
na_list[["real + Inf row"]] <- na
na <- na_list[["real"]]
na[2, 2] <- NaN
na_list[["real + NaN cell"]] <- na
na <- na_list[["real w/ NA"]]
na[2, 2] <- NaN
na_list[["real w/ NA + NaN cell"]] <- na
na <- na_list[["real w/ NA"]]
na[2, ] <- NaN
na_list[["real w/ NA + NaN row"]] <- na
# To check names attribute
dimnames <- list(letters[1:4], LETTERS[1:3])
# Test with and without dimnames on x
for (setDimnames in c(TRUE, FALSE)) {
if (setDimnames) dimnames(x) <- dimnames
else dimnames(x) <- NULL
for (na.rm in c(FALSE, TRUE)) {
for (name in names(na_list)) {
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
na <- na_list[[name]]
cat(sprintf("%s (%s) w/ na.rm = %s:\n", name, typeof(na), na.rm))
print(na)
cat(" min:\n")
y0 <- rowMins_R(na, na.rm = na.rm, useNames = useNames)
str(y0)
y1 <- rowMins(na, na.rm = na.rm, useNames = useNames)
str(y1)
stopifnot(all.equal(y1, y0))
y1c <- colMins(t(na), na.rm = na.rm, useNames = useNames)
str(y1c)
stopifnot(all.equal(y1c, y1))
cat(" max:\n")
y0 <- rowMaxs_R(na, na.rm = na.rm, useNames = useNames)
str(y0)
y1 <- rowMaxs(na, na.rm = na.rm, useNames = useNames)
str(y1)
stopifnot(all.equal(y1, y0))
y1c <- colMaxs(t(na), na.rm = na.rm, useNames = useNames)
str(y1c)
stopifnot(all.equal(y1c, y1))
cat(" range:\n")
y0 <- rowRanges_R(na, na.rm = na.rm, useNames = useNames)
str(y0)
y1 <- rowRanges(na, na.rm = na.rm, useNames = useNames)
str(y1)
stopifnot(all.equal(y1, y0))
y1c <- colRanges(t(na), na.rm = na.rm, useNames = useNames)
str(y1c)
stopifnot(all.equal(y1c, y1))
}
} # for (name ...)
} # for (na.rm ...)
}
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