删除字符串中句点前的所有字符 [英] Remove all characters before a period in a string

问题描述

这会保留一段时间之前的所有内容:

This keeps everything before a period:

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

经期过后如何保留一切?

how to keep everything after the period?

推荐答案

删除字符串中句点前的所有字符(包括句点).

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

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

示例:

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

删除第一个句点之前的所有字符(包括句点).

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

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

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