R Under development (unstable) (2023-12-09 r85665 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library("matrixStats")
> 
> ## Always allow testing of the 'center' argument (as long as it's not defunct)
> options(matrixStats.center.onUse = "ignore")
> 
> ## Create isFALSE() if running on an old version of R
> if (!exists("isFALSE", mode="function")) {
+   isFALSE <- function(x) is.logical(x) && length(x) == 1L && !is.na(x) && !x
+ }
> 
> rowVars_R <- function(x, na.rm = FALSE, center = NULL, ..., useNames = NA) {
+   suppressWarnings({
+     res <- apply(x, MARGIN = 1L, FUN = var, na.rm = na.rm)
+   })
+   stopifnot(!any(is.infinite(res)))
+   
+   # Keep naming support consistency same as rowVars()
+   if (is.null(center) || ncol(x) <= 1L) {
+     if (is.na(useNames) || isFALSE(useNames)) names(res) <- NULL
+   }
+   else if (isFALSE(useNames)) names(res) <- NULL
+   res
+ }
> 
> colVars_R <- function(x, na.rm = FALSE, center = NULL, ..., useNames = NA) {
+   suppressWarnings({
+     res <- apply(x, MARGIN = 2L, FUN = var, na.rm = na.rm)
+   })
+   stopifnot(!any(is.infinite(res)))
+   
+   # Keep naming support consistency same as colVars()
+   if (is.null(center) || nrow(x) <= 1L) {
+     if (is.na(useNames) || isFALSE(useNames)) names(res) <- NULL
+   }
+   else if (isFALSE(useNames)) names(res) <- NULL
+   res
+ }
> 
> 
> rowVars_center <- function(x, rows = NULL, cols = NULL, na.rm = FALSE, ..., useNames = NA) {
+   center <- rowWeightedMeans(x, cols = cols, na.rm = na.rm, useNames = FALSE)
+   res <- rowVars(x, rows = rows, cols = cols, center = center, na.rm = na.rm, useNames = useNames)
+   stopifnot(!any(is.infinite(res)))
+   res
+ }
> 
> colVars_center <- function(x, rows = NULL, cols = NULL, na.rm = FALSE, ..., useNames = NA) {
+   center <- colWeightedMeans(x, rows = rows, na.rm = na.rm, useNames = FALSE)
+   res <- colVars(x, rows = rows, cols = cols, center = center, na.rm = na.rm, useNames = useNames)
+   stopifnot(!any(is.infinite(res)))
+   res
+ }
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # Subsetted tests
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> source("utils/validateIndicesFramework.R")
> x <- matrix(runif(6 * 6, min = -6, max = 6), nrow = 6, ncol = 6)
> storage.mode(x) <- "integer"
> 
> # To check names attribute
> dimnames <- list(letters[1:6], LETTERS[1:6])
> 
> # Test with and without dimnames on x
> for (setDimnames in c(TRUE, FALSE)) {
+   if (setDimnames) dimnames(x) <- dimnames
+   else dimnames(x) <- NULL
+ 
+   count <- 0L
+   for (rows in index_cases) {
+     for (cols in index_cases) {
+       count <- count + 1L
+       na.rm <- c(TRUE, FALSE)[count %% 2 + 1]
+       useNames <- c(if (!matrixStats:::isUseNamesNADefunct()) NA, TRUE, FALSE)
+       useNames <- useNames[count %% length(useNames) + 1]
+       
+       validateIndicesTestMatrix(x, rows, cols,
+                                 ftest = rowVars, fsure = rowVars_R,
+                                 na.rm = na.rm, useNames = useNames)
+       validateIndicesTestMatrix(x, rows, cols,
+                                 ftest = rowVars_center, fsure = rowVars_R,
+                                 na.rm = na.rm, center = TRUE, useNames = useNames)
+ 
+       validateIndicesTestMatrix(x, rows, cols,
+                                 fcoltest = colVars, fsure = rowVars_R,
+                                 na.rm = na.rm, useNames = useNames)
+       validateIndicesTestMatrix(x, rows, cols,
+                                 fcoltest = colVars_center, fsure = rowVars_R,
+                                 na.rm = na.rm, center = TRUE, useNames = useNames)
+     }
+   }
+ }
> 
> proc.time()
   user  system elapsed 
   0.81    0.06    0.87