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Asked: 2026-05-25T20:10:03+00:00

I know that I can change a data.frame column name by: colnames(df)[3] <- newname

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I know that I can change a data.frame column name by:

colnames(df)[3] <- "newname"

But there might be cases where the column I want to change is not in the 3rd position. Is there a way to look up the column by name and change it? Like this…

colnames(df)[,"oldname"] <- "newname"

BTW, I have tried this code and I keep getting incorrect number of subscripts on matrix.

Thanks.

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1 Answer

  1. Editorial Team
    colnames(df)[colnames(df)=="oldname"] <- "newname"

    or just names

    names(df)[names(df)=="oldname"] <- "newname"

    There are various functions for renaming columns in packages as well.

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