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

[Ronaldo Reis Junior]

Hi,

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?

Thanks
Ronaldo
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