[R] functions from 'base' package are not accessible

[William Dunlap]

Try putting !!! (three exclamation symbols) in front of which(...)==....

The non-standard evaluation in the tidyverse can cause confusion.

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Thu, Aug 24, 2017 at 4:32 AM, Eugeny Melamud <
Eugeny.Melamud at lanit-tercom.com> wrote:

> Hi all!
>
> The following code (executed in console)...
>     somevar <- data.frame(v1 = 1:5, somestring = 6:10, v3 = 11:15, v4 =
> 16:20);
>     somevar %>% gather(key = var, value = val, which(names(somevar) ==
> "somestring"):length(somevar)) %>% head(2);
> throws...
>     Error in which(names(somevar) == "somestring") :
>       could not find function "which"
>
> if I change which(names(somevar) == "somestring") with 0 I'll get
>    Error in length(somevar) :
>       could not find function "length"
>
> So it looks like base package is not loaded. Still if type 'which' in
> console I get
>   function (x, arr.ind = FALSE, useNames = TRUE)
>   {
>     wh <- .Internal(which(x))
>     if (arr.ind && !is.null(d <- dim(x)))
>         arrayInd(wh, d, dimnames(x), useNames = useNames)
>     else wh
>   }
>   <bytecode: 0x0000000006c6e258>
>   <environment: namespace:base>
>
> base (that contains which function) package is installed. R version is
> 3.4.1 and system is Win8
>
> Where should I look to understand how to fix the problem?
>
> Thank you in advance!
> Eugeny
>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/
> posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]