Display the help pages for installed packages that match the supplied pattern in an HTML browser window.
string pattern to match to package names
allows user to specify two additional arguments:
The specified pattern is matched to R-packages installed on
the user's system. The code uses the
browseURL to display the HTML Help Pages using
a browser that the system associates with
extensions. (See help for
browseURL for other operating systems.
A list is invisibly returned, comprising:
all packages installed on user's system
selected packages based on specified pattern
path and file name of HTML Help Page
Help pages are displayed in a separate browser window.
The connection time for browsers (at least in Windows OS)
is slow. If the HTML browser program is not already running,
multiple matching pages will most likely not be displayed. However,
subsequent calls to
showHelp should show all matches.
This function will now only work in R (>=3.2.0) or from SVN revision >= 67548.
The CRAN gurus now disallow direct calls to
Rowan Haigh, Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo BC
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