Remove all characters before a period in a string

Question

This keeps everything before a period:

gsub(\"\\\\..*\",\"\", data$column )

how to keep everything after the period?

Answer 1

To remove all the characters before a period in a string(including period).

gsub("^.*\\.","", data$column )

Example:

> data <- 'foobar.barfoo'
> gsub("^.*\\.","", data)
[1] "barfoo"

To remove all the characters before the first period(including period).

> data <- 'foo.bar.barfoo'
> gsub("^.*?\\.","", data)
[1] "bar.barfoo"