R Programming/Text Processing - Wikibooks, open books for an open world

R Programming/Text Processing - Wikibooks, open books for an open world

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日期:2025-05-21
A regular expression is a specific pattern in a set of strings. For instance, one could have the following pattern : 2 digits, 2 letters and 4 digits. R provides powerful functions to deal with regular expressions. Two types of regular expressions are use...看更多