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並前往https://stat2labs.sites.grinnell.edu/Handouts/rtutorials/IntroStrings.html

Intro to Text Manipulation in R - Stat2labs

str_replace_all (out, "\\[(.*)\\]", "X") ## [1] "abcX" "abcX" "abcX" "abcX". In this case, we match the first left bracket (indicated by the \\[ ), followed ...

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