Nothing
library(pense)
library(testthat)
test_that("Using a parallel cluster", {
library(parallel)
cl <- makePSOCKcluster(1)
on.exit(stopCluster(cl), add = TRUE, after = FALSE)
# User messes with cluster...
clusterEvalQ(cl, {
x <- "x"
y <- "y"
std_data <- "standardized data"
})
# Generate dummy data with n=50 observations and p=25 possible predictors
# (of which only the first 3 are truly relevant).
n <- 50
p <- 20
set.seed(123)
x <- matrix(rt(n * p, df = 5), ncol = p)
y <- x[, 1] + 0.5 * x[, 2] + 2 * x[, 3] + rt(n, df = 2)
set.seed(123) # Setting the seed is suggested for reproducibility of the CV results.
fit_with_cluster <- adapense_cv(x, y, nlambda = 25, alpha = 0.9, cv_k = 3, cv_repl = 2, cl = cl)
expect_is(fit_with_cluster, 'pense_cvfit')
})
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