[R] an rpy2, R cgi type question

Thu Oct 31 04:51:37 CET 2013

Erin can you share the internal error details?

As a first guess are the files executable by all?  CGI requires world rwx.

	Best,
	Collin.

On Wed, 30 Oct 2013, Erin Hodgess wrote:

> Hi again.
>
> I'm putting together a little project with R, python, and a website.  So I
> have an HTML file, a py file, an R file.
>
> Here is the HTML file:
> <form action="/cgi-bin/radio4.py" method="post" target="_blank">
> <input type="radio" name="subject" value="Integrate" /> Integrate
> <input type="radio" name="subject" value="Differentiate" /> Differentiate
> <input type="radio" name="subject" value="Graph" /> Graph
> Function <input type="text"  name="func1" <br />
> <input type="submit" value="Select Subject" />
> </form>
>
> Now the radio4.py file:
>
> # Import modules for CGI handling
> import cgi, cgitb
> from sympy import *
> import sys
>
> from rpy2.robjects.packages import SignatureTranslatedAnonymousPackage as
> STAP
> with open("bz2.R","r") as f:
>     string=''.join(f.readlines())
> etest = STAP(string,"etest")
> etest.etest(500)
>
>
> # Create instance of FieldStorage
> form = cgi.FieldStorage()
>
> # Get data from fields
> if form.getvalue('subject'):
>    subject = form.getvalue('subject')
> else:
>    subject = "Not set"
>
> if form.getvalue('func1'):
>    func1 = form.getvalue('func1')
> else:
>    func1 = "Not entered"
>
>
>
>
>
> print "Content-type:text/html\r\n\r\n"
> print "<html>"
> print "<head>"
> print "<title>Test Project</title>"
> print "</head>"
> print "<body>"
> print "<h2> Selected Action is %s</h2>" % subject
> print "<h3> output function is %s</h3>" % func1
> print "</body>"
> print "</html>"
>
>
> Finally, the bz2.R file:
>
> etest <- function(n=100) {
>     y <- rnorm(n)
>     pdf(file="lap1.png")
>     plot(y)
>     dev.off()
> }
>
>
> The radio4.py file is in a cgi-bin directory, along with the bz2.R file.
>
> I keep getting the Internal server error.
>
> Thanks for any help.
>
> Sincerely,
> Erin
>
> This is R version 3.0.2 and Python 2.7.5
>
> --
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
>
> 	[[alternative HTML version deleted]]
>
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