[R] png() or jpeg() in a php script

[Dieter Menne]

Angel Roman <aroman6 <at> gmail.com> writes:

> I've got a problem with a PHP script, in which I call the system function
> (to call another processes). The call is :
> 
> system("R --slave --vanilla < path/to/source/source.R");
...


> but if I change the lines to:
> 
>   png(file="/path/to/file/file.png");
>   commands
>   dev.off()
> 
> (or with the jpeg() function)
> 
> the files are not created. any help?

Try the following in your script to find out if you can create jpeg on your
operation system.

sink("cap.txt")
capabilities()
sink()


Dieter