[R] Newbie R question PART2

Martin Morgan mtmorgan at fhcrc.org
Wed Apr 29 19:32:49 CEST 2009


Tena Sakai wrote:
> Hi,
> 
> Many thanks to Wacek Kusnierczyk and Ted Harding.
> 
> I learned 3 new tricks.  (Not bad for a newbie?)
> 
>   $ R --silent --no-save < barebone.R
>   $ R --quiet --no-save < barebone.R
>   $ R --slave < barebone.R
> 
> With slight differences, they all do what I wanted.
> 
> Moving right along my tiny agenda...
> 
> Given the same one-liner,
>   cat ('Hello World!\n')
> would someone please show me how to turn this one liner
> into a web page with Rpad?  

For the basic 'put text in an html page'

  library(hwriter)
  htmlFile = tempfile()
  hwrite("Hello World", htmlFile)
  browseURL(htmlFile)

for more advanced static pages

  example(hwrite)

Martin

> Obviously, What I want to build is a web page, where it
> say "click <here>" and when it is clicked the screen
> blanks out and give a line:
>   Hello World!
> 
> I have looked at an example or two of Rpad, but it was
> overly complicated for simpleminded newbie.
> 
> Regards,
> 
> Tena Sakai
> tsakai at gallo.ucsf.edu
> 
> 
> -----Original Message-----
> From: Ted.Harding at manchester.ac.uk [mailto:Ted.Harding at manchester.ac.uk]
> Sent: Tue 4/28/2009 2:11 PM
> To: r-help at r-project.org
> Cc: Tena Sakai
> Subject: RE: [R] Newbie R question
>  
> On 28-Apr-09 20:42:45, Tena Sakai wrote:
>> Hi,
>>
>> I am a newbie with R.  My environment is linux and
>> I have a file.  I call it barebone.R, which has one
>> line:
>>
>>  cat ('Hello World!\n')
>>
>> I execute this file as:
>>
>>  R --no-save < barebone.R
>>
>> And it does what I expect.  What I get is 20+/- lines
>> of text, one of which is 'Hello World!'.
>>
>> How would I go about getting rid of all but the line I
>> am after, 'Hello World!'?
>>
>> Regards,
>>
>> Tena Sakai
>> tsakai at gallo.ucsf.edu
> 
> An unusual request! I had to browse 'man R' a bit before getting
> a hint.
> 
>   R --silent --nosave < barebone.R
> 
> should do it!
> Ted.
> 
> --------------------------------------------------------------------
> E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk>
> Fax-to-email: +44 (0)870 094 0861
> Date: 28-Apr-09                                       Time: 22:11:23
> ------------------------------ XFMail ------------------------------
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at 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.




More information about the R-help mailing list