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我正在使用一个没有列标题的 delim 文件。有 45 列,但我只想要前 26 列。在处理多个未命名的列时,我不太清楚 cols_only 的正确语法。给定我下面的代码,cols_only 去哪里了?
ex <- read_delim("ex.txt", delim = ",", col_names = FALSE, skip = 4)