[R] xyplot source file only work with echo=TRUE

[Dieter Menne]

Ronaldo Reis Junior <chrysopa <at> gmail.com> writes:

> I write several xyplot graphics on a source file. When I try to use 
> source("graphics.R") the source don't work, but if I use 
> source("graphics.R",echo=T) it work. Generally some commands work without 
> echo=T, but xyplot dont work. Why it dont work without echo=T? It is possible 
> to write a source that dont need echo=T on source command?
> 

Most likely another variant of 

<http://post.gmane.org/post.php?group=gmane.comp.lang.r.general&followup=83924>

See: Why do lattice/trellis graphics not work?

Dieter Menne