Execute a set of lines from another R file -


i'm not sure if possible, i'm looking similar defining regions in r script. execute pre-specified set of lines r script. know can run entire file using source(filename) instead of running entire file, run few lines in file.

is possible me define regions or similar in file , execute file?

any appreciated.

if you're worried region of interest shifted once add new lines upstream, alternative (or modified) version of mrflick's answer read as:

sourcepartial <- function(fn,starttag='#from here',endtag='#to here') {   lines <- scan(fn, what=character(), sep="\n", quiet=true)   st<-grep(starttag,lines)   en<-grep(endtag,lines)   tc <- textconnection(lines[(st+1):(en-1)])   source(tc)   close(tc) }

now need put small, unique hash tag above , below of region of interest. such "#from here" , "#to here"


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