仅将R中的一列重命名数据框中的列名

Question

I have a data frame(black) in R by just one column. I need to rename column by a new name(black_module).

I read this data frame from black.txt as a file by below code:

black = read.delim('black.txt, header =FALSE)

and then for rename of the column, I use below code:

colnames(black) <- c("black_module")

but when I colnames(black), I see V1 and I can't see black_module as a column name.

I don't know what is my problem. I appreciate if anybody guide me.

Answer 1

After you run colnames(black) , like you stated above, try black$black_module <- black$V1; black$V1 <- NULL black$black_module <- black$V1; black$V1 <- NULL