Reverse the order of a categorical axis in ggplot2

reverse-categorical-axis-ggplot2.r

scale_x_discrete(limits = rev(levels(the_factor)))

thanks this was very helpful. I found this via a google search.

So helpful!!

Thanks! I've linked this in a stackoverflow post https://stackoverflow.com/questions/28391850/r-reverse-order-of-discrete-y-axis-in-ggplot2

Amazing, thank you!

You can also just specify it in the aesthetics
aes(x = reorder(the_factor, desc(the_factor)), ...)

Thank you!

Thanks a lot!

@mgei 's method is slightly better as it works with a faceted graph and scales="free".

Thank you!

perfecttt!!!

so simple, many thanks

unfortunately this does not work with rlang/purrr functional programming:

scale_x_discrete(limits = rev(levels(!!sym(the_factor))))

Error in !sym(the_factor) : invalid argument type

And, as an aside, it does not work if the variable is a character vector rather than a factor (though of course that's an easy fix).

@jzadra The constructs like !! are specific to tidyeval functions, which does not include base functions like levels().

Thanks. It's too bad that the scale_*_reverse() only works on numeric; it seems like it would be useful to have it perform this behavior on factor and character.

This works now: scale_x_discrete(limits = rev)

This works now: scale_x_discrete(limits = rev)

Thanks for this!

This works now: scale_x_discrete(limits = rev)

Yes, this works! Many thanks

this helped me too, thanks!

Still helpful in 2024!!! Thanks so much :-)