In isaacmichaud/IMisc: Isaac Michaud's Personal R Package

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

Debugging

Using Browser

David taught me to use conditional print statements to stop the code at a particular iteration and print some output. A better way of doing this is using the browser() which can trigger when the expr is equal to TRUE. In the following example the loop will pause at iteration 556 and allow you to interactively debugging.

for (i in 1:1000) {
  browser(expr = (i==556))
}

isaacmichaud/IMisc documentation built on July 1, 2019, 10:22 a.m.