2
我试图找到答案,但我经常失败。我有一个字符串列的数据框。我想计算列的每个条目中的字符数,并用计数替换字符串列。Match.fun错误(乐趣)
data[,29]=apply(data[,29],nchar())
Out[2]: Error in match.fun(FUN): argument "FUN" is missing, with no default
Error in match.fun(FUN): argument "FUN" is missing, with no default