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rlatexsweave

using source("X.R") in Sweave file

I need to use a function in my Sweave file to execute chunk codes. For example, I have function MEAN <- function(x) mean(x) in my directory, then I want use the chunk code 

x=c(1,2,3,4)
MEAN(x)

in my Sweave file. Does anyone know how can I do that?

Thanks.

Solution

  • When you are writing code normally inside the code blocks of the document, just make sure to set the directory of where the R file is located and source the file.

    e.g.,

    <<echo=TRUE>>=
    setwd(mydirectory)
    source(myfile)
    print(MEAN(x))
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