[英]I want to filter group id's specific conditions meeting on both column and some row value in r
[英]R reading csv file i want to only one column with that row end with specific string value
我們可以轉義()
\\\\(contact\\\\);$
並將其用作模式
Piname[str_detect(Piname, "\\(contact\\);$")]
默認情況下, (
或)
將被識別為元字符以將字符捕獲為一個組。 $
是表示字符串結束的元字符
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