[Rd] write.csv(..., col.names = FALSE) (PR#13202)

From: <stefan.albrecht_at_allianz.com>
Date: Fri, 24 Oct 2008 14:30:08 +0200 (CEST)

Full_Name: Stefan Albrecht
Version: 2.7.2 (and 2.8.0)
OS: Windows NT
Submission from: (NULL) (

Dear R Debug-Team,

in write.csv() it is not possible to set both row.names = FALSE, col.names = FALSE
since the col.names = FALSE gets overwritten:

> write.csv

function (...)

    Call <- match.call(expand.dots = TRUE)     for (argname in c("col.names", "sep", "dec", "qmethod")) if (!is.null(Call[[argname]]))

        warning(gettextf("attempt to set '%s' ignored", argname), 
            domain = NA)

    rn <- eval.parent(Call$row.names)
    Call$col.names <- if (is.logical(rn) && !rn)

    else NA

    Call$sep <- ","
    Call$dec <- "."
    Call$qmethod <- "double"

    Call[[1]] <- as.name("write.table")
<environment: namespace:utils>

This is not documented and should be changed, as it is an unintended reaction.

With many thanks and best regards,

R-devel_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel Received on Sat 25 Oct 2008 - 21:08:23 GMT

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