On Jun 13, 2015, at 7:41 AM, Ramnik Bansal wrote:
> Getting following error in using help.search
>
>> utils::help.search("linear models")
> Error in help(db[i, "topic"], package = db[i, "Package"], lib.loc = lib, :
> 'topic' should be a name, length-one character vector or reserved word
I first tried this in a Mac running the SL version for R 3.1.2 and did not get
this error. I updated my Mavericks laptop to R 3.2.0 and can now reproduce this
error. It does not seem to depend on having a space in the argument. It seems
to be thrown by this segment of code in the `help()`-function:
ischar <- tryCatch(is.character(topic) && length(topic) ==
1L, error = identity)
if (inherits(ischar, "error"))
ischar <- FALSE
if (!ischar) {
reserved <- c("TRUE", "FALSE", "NULL", "Inf", "NaN",
"NA", "NA_integer_", "NA_real_", "NA_complex_", "NA_character_")
stopic <- deparse(substitute(topic))
if (!is.name(substitute(topic)) && !stopic %in% reserved)
stop("'topic' should be a name, length-one character vector or
reserved word")
If gone through the `help.search` function code and cannot find where the
`help` function is actually called. This seems unlikely to be a Mac-specific
problem.
>
>
>> example(help.search)
>
> hlp.sr> help.search("linear models") # In case you forgot how to fit
> linear
> Error in help(db[i, "topic"], package = db[i, "Package"], lib.loc = lib, :
> 'topic' should be a name, length-one character vector or reserved word
>
>
> How to sort this?
>
> [[alternative HTML version deleted]]
David Winsemius
Alameda, CA, USA
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