R/internal.R

In ssdtools: Species Sensitivity Distributions

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probs <- function(level) {
  probs <- (1 - level) / 2
  c(probs, 1 - probs)
}

safely <- function(.f) {
  function(...) {
    x <- try(.f(...), silent = TRUE)
    if (inherits(x, "try-error")) {
      return(list(result = NULL, error = as.character(x)))
    }
    list(result = x, error = NULL)
  }
}

pow <- function(x, y) x^y