dplyr summarize Warnings

A short description of the post.


Center for Environmental Studies


February 9, 2021

One of the few annoying things I find with dplyr lately is the addition of an experimental option where if you use something like,

group_by(X) %>% 
  summarize( Val = mean(Y))

it gives you an error message with something like.

summarise() has grouped output by ‘X’. You can override using the .groups argument.

But why would I want to ‘override’ that grouping dplyr::authors? Didn’t I just set the grouping? I would suspect that the majority of use cases are exactly like above (group_by() immediately by summarize()).

While much of tidyverse is too verbose for most of my liking. I can do without messages like:

messages on tidyverse startup

Well I finally figured out how to shut the first part up (still working on the second part). Just put the following code into your .Rprofile file for a global fix, or any code you are using on a per-file basis.

options( dplyr.summarise.inform = FALSE )

Now if we could just find some way to not have to use include=FALSE in the chunk preamble or suppressPackageStartupMessages(library(dplyr)) just to load in a library without adding a bunch of crap to our markdown files.