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")
> 
> signTabulate0 <- function(x, ...) {
+   nneg <- sum(x < 0, na.rm = TRUE)
+   nzero <- sum(x == 0, na.rm = TRUE)
+   npos <- sum(x > 0, na.rm = TRUE)
+   nna <- sum(is.na(x))
+   nneginf <- sum(is.infinite(x) & x < 0, na.rm = TRUE)
+   nposinf <- sum(is.infinite(x) & x > 0, na.rm = TRUE)
+   res <- c(nneg, nzero, npos, nna, nneginf, nposinf)
+   res <- as.double(res)
+   names(res) <- c("-1", "0", "+1", "NA", "-Inf", "+Inf")
+   if (is.integer(x)) res <- res[1:4]
+   res
+ } # signTabulate0()
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # Subsetted tests
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> source("utils/validateIndicesFramework.R")
> x <- matrix(runif(6 * 6, min = -6, max = 6), nrow = 6, ncol = 6)
> x[2:3, 4:5] <- +Inf
> x[4:5, 1:2] <- -Inf
> for (idxs in index_cases) {
+   validateIndicesTestVector(x, idxs,
+                             ftest = signTabulate, fsure = signTabulate0)
+ }
> 
> proc.time()
   user  system elapsed 
   0.17    0.03    0.18