Nothing
library(gemma2)
readr::read_tsv(system.file("extdata", "mouse100.pheno.txt", package = "gemma2"), col_names = FALSE) -> pheno
readr::read_tsv(system.file("extdata", "mouse100.cXX.txt", package = "gemma2"), col_names = FALSE)[, 1:100] -> kinship
e_out <- eigen2(kinship)
as.matrix(pheno[, c(1, 6)]) -> phe16
MphEM(max_iter = 10, eval = e_out$values, X = matrix(c(-10, rep(0, 99)), nrow = 1),
Y = t(phe16) %*% e_out$vectors,
V_g = matrix(c(1.91352, 0, 0, 0.530827), nrow = 2),
V_e = matrix(c( 0.320028, 0, 0, 0.561589), nrow = 2), verbose_output = TRUE
)-> foo
MphEM(max_iter = 10, eval = e_out$values, X = matrix(c(-10, rep(0, 99)), nrow = 1),
Y = t(phe16) %*% e_out$vectors,
V_g = matrix(c(1.91352, 0, 0, 0.530827), nrow = 2),
V_e = matrix(c( 0.320028, 0, 0, 0.561589), nrow = 2), verbose_output = FALSE
)-> bar
context("Testing MphEM() with two phenotypes and intercept only (no genetic data)")
test_that("First calculations of for Vg and for Ve are accurate", {
expect_equal(foo[[1]][[2]], matrix(c(1.91352, 0.0700492, 0.0700492, 0.530827), nrow = 2, ncol = 2, byrow = FALSE), tolerance = 0.000001)
expect_equal(foo[[1]][[3]], matrix(c(0.320028, 0.0691272, 0.0691272, 0.561589), nrow = 2, ncol = 2, byrow = FALSE), tolerance = 0.000001)
expect_equal(foo[[5]][[2]], matrix(c(1.89405, 0.112242, 0.112242, 0.531075), nrow = 2), tolerance = 0.00001)
expect_equal(foo[[5]][[3]], matrix(c(0.324097, 0.153797, 0.153797, 0.561429), nrow = 2), tolerance = 0.00001)
})
test_that("MphEM gives same output, regardless of value of input `verbose_output`", {
expect_equal(foo[[10]][[2]], bar[[1]][[2]])
expect_equal(foo[[10]][[3]], bar[[1]][[3]])
expect_length(foo, 10)
expect_length(bar, 1)
})
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