test_that("tune.spca works", {
data(srbct)
X <- srbct$gene[1:20, 1:200]
grid.keepX <- seq(5, 35, 10)
set.seed(5212)
object <- tune.spca(X,ncomp = 2,
folds = 5,
test.keepX = grid.keepX, nrepeat = 3,
BPPARAM = SerialParam(RNGseed = 5212))
expect_equal(object$choice.keepX[[1]], 35)
expect_equal(object$choice.keepX[[2]], 5)
})
test_that("tune.spca works with NA input", {
data(srbct)
X <- srbct$gene[1:20, 1:200]
set.seed(5212)
na.feats <- sample(1:ncol(X), 20)
for (c in na.feats) {
na.samples <- sample(1:nrow(X),1) # sample.int(3, 1)
X[na.samples, c] <- NA
}
grid.keepX <- seq(5, 35, 10)
expect_warning({object <- tune.spca(X,ncomp = 2,
folds = 5,
test.keepX = grid.keepX, nrepeat = 3,
BPPARAM = SerialParam(RNGseed = 5212))},
"NAs present")
expect_equal(object$choice.keepX[[1]], 15)
expect_equal(object$choice.keepX[[2]], 5)
})
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