代码是write.table( as.data.frame(dad), sep="\t", col.names=NA,row.names=FALSE,)

是不是原始数据的问题，所有变量输出时都是如此？

输出没有影响，就是看到这个报错，感觉有点疑问，谢谢热心帮助解答！

是不是取值不对，应该是T或F
row.names       
either a logical value indicating whether the row names of x are to be written along with x, or a character vector of row names to be written.
col.names       
either a logical value indicating whether the column names of x are to be written along with x, or a character vector of column names to be written. See the section on ‘CSV files’ for the meaning of col.names = NA.

谢谢，我回头试试换成F看看