[R] can't understand "R"

Ramon Diaz-Uriarte rdiaz at cnio.es
Tue Sep 21 10:23:31 CEST 2004

Dear Erin,

On Tuesday 21 September 2004 06:10, Erin L. Leisz wrote:
> hi.  i really need help using this program.  computer language is a foreign
> language to me, and thus, i cannot make heads nor tails of the user manuals
> from the website.  i need to locate step-by-step examples of simple

If you plan to use R more than once, I think you probably want to get used to 
using the manuals (starting with "An introduction to R", and maybe some of 
the other intro material available from the R web site).

> problems such as "graph f(x)+g(x) and f(g(x)) for the domain 0<x<2" and
> "graph 2H(x), H(x)+1, H(x+1)"  i do know how to define the functions, but
> that's it.  is there any help you could provide me?  i would appreciate
> some help asap.  thank you very much

For this particular case of plotting f(x), you can take a look at the function 
"curve" (do:
at the R prompt).

Hope this helps.


> erin leisz
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Ramón Díaz-Uriarte
Bioinformatics Unit
Centro Nacional de Investigaciones Oncológicas (CNIO)
(Spanish National Cancer Center)
Melchor Fernández Almagro, 3
28029 Madrid (Spain)
Fax: +-34-91-224-6972
Phone: +-34-91-224-6900

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