Re: [R] printing html help to the terminal
On 04/08/2010 12:44 PM, Michael Lachmann wrote:
I'm trying to get help to print the help pages in html format to the
terminal. This is in order to be able to see the html help files remotely.
If I do
printURL = function(file) {a=readLines(url(file));cat(a,sep=\n)}
options(browser=printURL)
options(help_type=html)
then invoking help with
?print
gets stuck. I think what happens is that the web server run by R that allows
one to read help will not work as long as R is waiting for the function to
complete. Thus, if I run a second R session, and try to read the help files
that one session produces from the other, I have no problems.
I also tried
options(browser=wget -O- )
But again, while R is waiting for the command to complete, the web server is
dead.
Is there a better way to accomplish this?
What you're doing should work, and it works for me in 2.11.1 in
Windows. Not sure why it doesn't work for you.
A more direct way to get the HTML output for a help file is to use the
internal utilities that R uses. You get the help page using
page - utils:::.getHelpFile(?print)
(remember to keep that question mark!), and use
tools::Rd2HTML(page)
to turn it into HTML.
Duncan Murdoch
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Re: [R] printing html help to the terminal
I just tried it under OSX and linux, and both get stuck. Maybe R on windows
forks the R help server?
But what you suggested works perfectly. Thanks!
Do you by chance know if there was something equivalent in R 2.10.x and/or
2.9.x
Duncan Murdoch-2 wrote:
On 04/08/2010 12:44 PM, Michael Lachmann wrote:
I'm trying to get help to print the help pages in html format to the
terminal. This is in order to be able to see the html help files
remotely.
If I do
printURL = function(file) {a=readLines(url(file));cat(a,sep=\n)}
options(browser=printURL)
options(help_type=html)
then invoking help with
?print
gets stuck. I think what happens is that the web server run by R that
allows
one to read help will not work as long as R is waiting for the function
to
complete. Thus, if I run a second R session, and try to read the help
files
that one session produces from the other, I have no problems.
I also tried
options(browser=wget -O- )
But again, while R is waiting for the command to complete, the web server
is
dead.
Is there a better way to accomplish this?
What you're doing should work, and it works for me in 2.11.1 in
Windows. Not sure why it doesn't work for you.
A more direct way to get the HTML output for a help file is to use the
internal utilities that R uses. You get the help page using
page - utils:::.getHelpFile(?print)
(remember to keep that question mark!), and use
tools::Rd2HTML(page)
to turn it into HTML.
Duncan Murdoch
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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R-help@r-project.org mailing list
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and provide commented, minimal, self-contained, reproducible code.
Re: [R] printing html help to the terminal
On 04/08/2010 2:40 PM, Michael Lachmann wrote:
I just tried it under OSX and linux, and both get stuck. Maybe R on windows
forks the R help server?
It doesn't fork, but it might run in another thread.
But what you suggested works perfectly. Thanks!
Do you by chance know if there was something equivalent in R 2.10.x and/or
2.9.x
I believe similar code will work in 2.10.x, which was when the new help
system was introduced. The .getHelpFile function isn't there, but I
believe if you just
copy it from 2.11.1 into 2.10.x, it will work.
In 2.9.x you actually have copies of the HTML files on disk. You can
probably play with unclass(?topic) to construct the path to one. (I'm
on a relatively new machine here, with nothing older than 2.10.1 installed.)
Duncan Murdoch
Duncan Murdoch-2 wrote:
On 04/08/2010 12:44 PM, Michael Lachmann wrote:
I'm trying to get help to print the help pages in html format to the
terminal. This is in order to be able to see the html help files
remotely.
If I do
printURL = function(file) {a=readLines(url(file));cat(a,sep=\n)}
options(browser=printURL)
options(help_type=html)
then invoking help with
?print
gets stuck. I think what happens is that the web server run by R that
allows
one to read help will not work as long as R is waiting for the function
to
complete. Thus, if I run a second R session, and try to read the help
files
that one session produces from the other, I have no problems.
I also tried
options(browser=wget -O- )
But again, while R is waiting for the command to complete, the web server
is
dead.
Is there a better way to accomplish this?
What you're doing should work, and it works for me in 2.11.1 in
Windows. Not sure why it doesn't work for you.
A more direct way to get the HTML output for a help file is to use the
internal utilities that R uses. You get the help page using
page - utils:::.getHelpFile(?print)
(remember to keep that question mark!), and use
tools::Rd2HTML(page)
to turn it into HTML.
Duncan Murdoch
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
