Boxplot with jitter bug

[holtzy]

Your graphing tutorials are great! I have been using this example and really like it: https://www.r-graph-gallery.com/96-boxplot-with-jitter.html

I just updated R and Rstudio and now its not working and after a day of trying to get it to work and trying to sort out which packages I lost, I figured I would try out your email before giving up.

This line levelProportions <- summary(data$names)/nrow(data)

Now generates the error "Error in summary(data$names)/nrow(data) : non-numeric argument to binary operator”

But even removing the “amount” option in the jitter() function or giving it just some constant I am not able to get this to work

Any hints would be very appreciated!

Sincerely,

Ashley