我有一個大數(shù)據(jù)框,如下所示:df1(樣本數(shù)據(jù))a name keywords1 ramesh rrahul,rapple2 venkat rtemple3 rajesh rcake,rphone,rmaths4 lamda rcon5 feast rcamera,rtab我想刪除r出現(xiàn)在由逗號分隔的單詞組成的字符串中每個單詞開頭的字母。輸出應(yīng)如下所示:a name keywords1 ramesh rahul,apple2 venkat temple3 rajesh cake,phone,maths4 lamda con5 feast camera,tab
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