learn: Run learn() after unk()

In unknownR: You didn't know you didn't know?

Description

Displays help for the known unknowns saved by unk().

Usage

learn(pkgs=NULL,relearn=FALSE,fnam = path.expand("~/.knowns.Rdata"))

Arguments

pkgs	A character vector of package names. NULL means all known unknowns from any package unk() has been passed.
relearn	Reread the manual pages again, even though you already learn()-ed them.
fnam	Same as fnam in unk()

Details

help() is called on each function name. Press ENTER for the next function. ~/.knowns.Rdata is updated to "learn()-ed" status as each function's help page is displayed. Run unk() afterwards when you know them.

We recommend you set options(help_type="html") so that help is displayed in your internet browser. It may be convenient to resize the browser to fill most of your screen, with the R prompt shrunk and non-overlapping with the browser. It is then easier to put focus back the R prompt (to press ENTER) after you have clicked the browser to scroll or follow links.

If you find mutiple windows, or multiple tabs being opened in your browser, you can try the following options.

• Firefox 3.5+.

  1. Edit->Preferences->Tabs->Open new windows in a new tab instead, AND

  2. Enter "about:config" as the URL->'Here be dragons' OK->browser.link.open_newwindow->Set to 1

  Now, for general browsing, ctrl-click to open links in a new tab.

• Internet Explorer

  Tools->Internet Options->Tab Settings->Open links from other programs in->The current tab

• Safari

  Preferences->General->Open links from Applications->In a new tab in the current window

  However, a new tab is created for each help(). Perhaps a Safari extension is available.

• Chrome (including v10) and Chromium

  We haven't found a way to stop a new tab for each help().

If you know how to make Safari or Chrome use the current tab for external applications, like Firefox and IE, please let maintainer("unknownR") know so this text may be updated. Thank you.

Value

Nothing.

References

Homepage: http://unknownr.r-forge.r-project.org/

See Also

unk

Examples

   ## Not run: 
   unk()
   learn()
## End(Not run)

unknownR documentation built on May 2, 2019, 5:10 p.m.