r - Alter file.show() behaviour -

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i'm running file.show() in rstudio on mac, this:

filename <- "/users/me/reports/myfile.pdf" # replace file location/name file.show(file.path(filename), title="my file")

this 2 things:

  1. opens file.pdf

  2. opens blank file in rstudio called "my file".

    options()$pdfviewer

returns:

"/usr/bin/open"

how can stop (2) happening?

if want open pdf file via rstudio on mac, simplest way (as far know) use system function:

filename <- "/users/me/reports/myfile.pdf" pdf <- getoption("pdfviewer") # same options()$pdfviewer cmd <- paste(pdf,filename) system(cmd)

for example used openpdf in biobase (see here)

i don't know way alter file.show behaviour in order prevent blank file being opened in rstudio. think has the r.app mac os x gui uses internal pager irrespective of setting of pager. can see on manual here.

note: different on windows machine, use shell.exec(filename) directly.


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