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並前往https://www.reddit.com/r/rstats/comments/k4wyzv/applying_a_stringr_function_to_multiple_columns/

Applying a stringr function to multiple columns : r/rstats - Reddit

This should do the trick: scores %>% dplyr::mutate_at(vars(Col25:Col36), str_match, "[:digit:]"). This applies the str_match function across ...

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