[R] source() fails in same directory as script: cannot find file

Ista Zahn
Fri, 26 Oct 2018 18:06:13 -0000

Hi Rich,

I'm confused. It seems the error is that the file can't be found; if
so, what does it matter what is in the file?

As far as I can see you are either not in the directory you think you
are, or b) the file is not named what you think it is.

Best,
Ista
On Fri, Oct 26, 2018 at 12:30 PM Rich Shepard <rshepard at
appl-ecosys.com> wrote:
>
>    I'm not seeing my error even after reading ?source and a couple of
web
> fora threads. Running R-3.5.1 on Slackware-14.2.
>
>    The scripts/ directory has the file 'input-summarize.R' with
these lines:
>
> sites <- read.table('../data/stations.dat', header=T,
sep=',', stringsAsFactors=T)
> sink('../analyses/location-summaries.txt')
> print(summary(sites)
> sink(NULL)
>
> hg_conc <- read.table('../data/concentrations.dat', header=T,
sep=',', stringsAsFactors=T)
> hg_conc$sampdate <- as.Date(as.character(hg_conc$sampdate))
> sink('../analyses/concentration-summaries.txt')
> print(summary(hg_conc)
> sink(NULL)
>
>    Sourcing the script within the same directory (confirmed using getwd())
> fails with this error message:
>
> > source('input-summarize.R')
> Error in file(filename, "r", encoding = encoding) :
>    cannot open the connection
> In addition: Warning message:
> In file(filename, "r", encoding = encoding) :
>    cannot open file 'input-summarize.R': No such file or directory
>
>    I've used this same syntax to source scripts within the past month
and
> would like to understand this error so I can fix it now and avoid it in the
> future.
>
> TIA,
>
> Rich
>
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