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library("matrixStats")
rowCounts_R <- function(x, value = TRUE, na.rm = FALSE, ...) {
if (is.na(value)) {
counts <- apply(x, MARGIN = 1L, FUN = function(x)
sum(is.na(x))
)
} else {
counts <- apply(x, MARGIN = 1L, FUN = function(x)
sum(x == value, na.rm = na.rm)
)
}
# Preserve names attribute
names <- names(counts)
counts <- as.integer(counts)
if (useNames && !is.null(names)) names(counts) <- names
counts
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Data type: integer and numeric
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
for (mode in c("integer", "double")) {
x <- matrix(runif(10 * 5, min = -3, max = 3), nrow = 10L, ncol = 5L)
x[sample.int(length(x), size = 7L)] <- 0
storage.mode(x) <- mode
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
for (na.rm in c(FALSE, TRUE)) {
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
# Count zeros
r0 <- rowCounts_R(x, value = 0, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, value = 0, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), value = 0, na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
# Count NAs
r0 <- rowCounts_R(x, value = NA, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, value = NA, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), value = NA, na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
if (mode == "integer") {
ux <- unique(as.vector(x))
r0 <- r1 <- r2 <- integer(nrow(x))
for (value in ux) {
r0 <- r0 + rowCounts_R(x, value = value, na.rm = na.rm, useNames = useNames)
r1 <- r1 + rowCounts(x, value = value, na.rm = na.rm, useNames = useNames)
r2 <- r2 + colCounts(t(x), value = value, na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
}
stopifnot(all(r0 == ncol(x)))
} # if (mode == "integer")
} # for (useNames ...)
} # for (na.rm ...)
} # for (setDimnames ...)
} # for (mode ...)
# All NAs
na_list <- list(NA_integer_, NA_real_, NaN)
for (na_value in na_list) {
x <- matrix(na_value, nrow = 10L, ncol = 5L)
# 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)) {
r0 <- rowCounts_R(x, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
# Count NAs
r0 <- rowCounts_R(x, value = NA, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, value = NA, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), value = NA, na.rm = na.rm, useNames = useNames)
stopifnot(all(r0 == ncol(x)))
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
}
}
}
} # for (na_value ...)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Data type: logical
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
x <- matrix(FALSE, nrow = 10L, ncol = 4L)
x[7:8, 2:3] <- TRUE
x[1:3, ] <- TRUE
x[, 1] <- TRUE
x[4, ] <- FALSE
x[, 4] <- FALSE
x[2, ] <- FALSE
x[3, ] <- TRUE
# To check names attribute
dimnames <- list(letters[1:10], LETTERS[1:4])
# Test with and without dimnames on x
for (setDimnames in c(TRUE, FALSE)) {
if (setDimnames) dimnames(x) <- dimnames
else dimnames(x) <- NULL
# Row/column counts
for (na.rm in c(FALSE, TRUE)) {
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
r0 <- rowCounts_R(x, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
r_true <- rowCounts(x, value = TRUE, na.rm = na.rm, useNames = useNames)
r_false <- rowCounts(x, value = FALSE, na.rm = na.rm, useNames = useNames)
stopifnot(r_true + r_false == ncol(x))
c_true <- colCounts(x, value = TRUE, na.rm = na.rm, useNames = useNames)
c_false <- colCounts(x, value = FALSE, na.rm = na.rm, useNames = useNames)
stopifnot(c_true + c_false == nrow(x))
# Count NAs
r0 <- rowCounts_R(x, value = NA, na.rm = na.rm, useNames = useNames)
r1 <- rowCounts(x, value = NA, na.rm = na.rm, useNames = useNames)
r2 <- colCounts(t(x), value = NA, na.rm = na.rm, useNames = useNames)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
}
}
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Data type: character (not sure if this should be supported)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
x <- matrix(rep(letters, length.out = 10 * 5), nrow = 10L, ncol = 5L)
x[2:3, 3:4] <- NA_character_
# Row/column counts
for (na.rm in c(FALSE, TRUE)) {
for (value in c("g", NA_character_)) {
r0 <- rowCounts_R(x, value = value, na.rm = na.rm)
r1 <- rowCounts(x, value = value, na.rm = na.rm)
r2 <- colCounts(t(x), value = value, na.rm = na.rm)
stopifnot(identical(r1, r0))
stopifnot(identical(r2, r0))
c <- count(x[1, ], value = value, na.rm = na.rm)
stopifnot(identical(c, r1[1]))
c <- count(x[2, ], value = value, na.rm = na.rm)
stopifnot(identical(c, r1[2]))
}
}
# NA row
x <- matrix(0, nrow = 2L, ncol = 2L)
x[1, ] <- NA_integer_
dimnames <- list(letters[1:2], LETTERS[1:2])
# Test with and without dimnames on x
for (setDimnames in c(TRUE, FALSE)) {
if (setDimnames) dimnames(x) <- dimnames
else dimnames(x) <- NULL
# Check names attribute
for (useNames in c(TRUE, FALSE)) {
r0 <- rowCounts(x, value = 0, useNames = useNames)
r1 <- rowCounts_R(x, value = 0, useNames = useNames)
stopifnot(identical(r0, r1))
}
}
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