Nothing
test_that("ldfast skips monomorphic sites", {
set.seed(1)
n <- 100
p <- 10
ploidy <- 4
## Generate random data
gp <- array(stats::runif(n * p * (ploidy + 1)), dim = c(p, n, (ploidy + 1)))
gp <- sweep(x = gp, MARGIN = c(1, 2), STATS = apply(gp, c(1, 2), sum), FUN = `/`)
## Add a couple monomorphic SNPs
gp[4, , 1] <- 1
gp[4, , 2] <- 0
gp[4, , 3] <- 0
gp[4, , 4] <- 0
gp[4, , 5] <- 0
gp[3, , 1] <- 0
gp[3, , 2] <- 0
gp[3, , 3] <- 0
gp[3, , 4] <- 0
gp[3, , 5] <- 1
## Check that everything only produces warnings (due to monomorphic SNPs).
expect_warning(ldfast(gp = gp, type = "r", upper = 100))
expect_warning(ldfast(gp = gp, type = "r2", upper = 100))
expect_warning(ldfast(gp = gp, type = "z", upper = 100))
expect_warning(ldfast(gp = gp, type = "D", upper = 100))
expect_warning(ldfast(gp = gp, type = "Dprime", upper = 100))
## Check sliding window
expect_error(ldfast(gp = gp, type = "r", win = 1, se = FALSE, thresh = FALSE, shrinkrr = FALSE), NA)
expect_error(ldfast(gp = gp, type = "r2", win = 1, se = FALSE, thresh = FALSE, shrinkrr = FALSE), NA)
expect_error(ldfast(gp = gp, type = "z", win = 1, se = FALSE, thresh = FALSE, shrinkrr = FALSE), NA)
expect_error(ldfast(gp = gp, type = "D", win = 1, se = FALSE, thresh = FALSE, shrinkrr = FALSE), NA)
expect_error(ldfast(gp = gp, type = "Dprime", win = 1, se = FALSE, thresh = FALSE, shrinkrr = FALSE), NA)
})
test_that("mycor works", {
x <- runif(10)
y <- runif(10)
x[3:4] <- NA_real_
y[4:5] <- NA_real_
expect_equal(
cor(x, y, use = "pairwise.complete.obs"),
mycor(x, y)
)
})
test_that("slcor works", {
n <- 10
p <- 100
xmat <- matrix(rnorm(n * p), ncol = n)
xmat[sample(n * p, size = 30)] <- NA_real_
cout <- cor(xmat, use = "pairwise.complete.obs")
slout <- slcor(xmat)
which_compare <- !is.na(slout)
expect_equal(
cout[which_compare],
slout[which_compare]
)
})
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