tests/1_distfreereg_test_16_stat_function_errors.R

In distfreereg: Distribution-Free Goodness-of-Fit Testing for Regression

library(distfreereg)
set.seed(20240214)
n <- 1e2
func <- function(x, theta) theta[1] + theta[2]*x[1] + theta[3]*x[2]
Sig <- rWishart(1, df = n, Sigma = diag(n))[,,1]
theta <- c(2,5,1)
X <- matrix(rexp(2*n, rate = 1), nrow = n)
Y <- distfreereg:::f2ftheta(f = func, X = X)(theta) +
  as.vector(distfreereg:::rmvnorm(n = n, reps = 1, mean = rep(0,n), SqrtSigma = distfreereg:::matsqrt(Sig)))

tryCatch(distfreereg(Y = Y, X = X, test_mean = func, covariance = list(Sigma = Sig), theta_init = c(1,1,1),
                     verbose = FALSE, stat = "no_such_function"),
         error = function(e) warning(e))

return_NA <- function(x) NA

tryCatch(distfreereg(Y = Y, X = X, test_mean = func, covariance = list(Sigma = Sig), theta_init = c(1,1,1),
                     verbose = FALSE, stat = "return_NA"),
         error = function(e) warning(e))

return_multiple <- function(x) c(sum(x), sum(x))

tryCatch(distfreereg(Y = Y, X = X, test_mean = func, covariance = list(Sigma = Sig), theta_init = c(1,1,1),
                     verbose = FALSE, stat = "return_multiple"),
         error = function(e) warning(e))