Graph with errobar using percentile function

[jcblum]

Welcome! Your code should run with the correction suggested by @martin.R, but I’d suggest one other modification to make it clearer: it’s a good idea to use curly braces whenever you have a function definition that extends over more than one line. Like so:

Percentile <- function(perc) {
  # perc is the percentile which should be computed for the numeric vector x
  function(x) quantile(x, perc*1e-2, na.rm=TRUE)
}

Also, for future reference (because I hope you’ll ask more questions! ), here’s how to make code you post here appear with nice formatting (and not trigger other automatic formatting, like how your comment was turned into a section heading):

FAQ: How to format your code

Formatting Code: the Basics All code or console output you include in your posts should be formatted properly. Luckily, this is very easy to do! Just use the code formatting button at the top of the post editing box: [image] Select some code Click the </> button! The code formatting button automatically adds special Markdown formatting symbols to whatever you selected. If you check the preview pane to the right of your post, you'll see that the forum software now outputs nicely formatted code . [04] The code formatting button is pretty smart! It can tell the difference between snippets of code that are part of a sentence and blocks of code that stand alone. …