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Replace test for Apple Mx processors #422

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Merged
StuartWheater merged 1 commit into from
Aug 23, 2025
Merged

Replace test for Apple Mx processors #422

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11 changes: 6 additions & 5 deletions tests/testthat/test-smk-corTestDS.R
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Original file line number Diff line number Diff line change
Expand Up @@ -201,7 +201,8 @@ test_that("simple corTestDS, some, with na, pearson", {

# extract information from the results
t_stat <- res$`Correlation test`$statistic[[1]]
df <- res$`Number of pairwise complete cases`
# degrees of freedom
df <- res$`Number of pairwise complete cases` - 2
# re-calculate the value for r (correlation)
## t_stat <- sqrt(df) * r / sqrt(1 - r^2) # Equation 1
## calculate intermediate coefficient, derived from Equation 1
Expand All @@ -212,10 +213,10 @@ test_that("simple corTestDS, some, with na, pearson", {
# if testing on Apple M1: due to numeric precision
if (getElement(Sys.info(), "sysname") == "Darwin" &&
getElement(R.version, "arch") == "aarch64") {
# lower tolerance, expect failure, due to numeric precision
expect_error(expect_equal(r, 1L, tolerance = 1E-16))
# higher tolerance, expect success
expect_equal(r, 1L, tolerance = 1E-8)
# t-stat should be a very large value, because r ~ 1, but not exactly 1
expect_false(is.infinite(t_stat))
# r ~ 1
expect_false(is.nan(r))
}
else { # other architectures
expect_true(is.infinite(t_stat))
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