Using Select Helpers in dplyr-CodePudding

I am looking to use dplyr to select only variables in my dataset that end in "500" exactly. That is, I do not want variables ending in 2500, 5500, or 1500. Just 500. I tried using ends_with("500"), but this includes the aforementioned variables ending in 2500, etc that I want to exclude.

I'm sure this is a very thing to do, but I am having trouble finding exactly what I want via google search.

Thanks!

CodePudding user response：

We may use matches instead of ends_with as ends_with does a fixed match and it will match the 500 or 1500 etc. Instead, if we use matches, there is flexibility in it i.e. can specify \\D before the 500 that it matches non-digits (not clear without a reproducible example though)

library(dplyr)
df1 %>%
     select(matches('\\D 500$'))