I've been creating some R tools that manipulate objective functions for optimization. In so doing, I create a character string with R code, and then want to have it in my workspace. Currently -- and this works fine -- I write the code out, then use source() to bring it in again. Example:

cstr<-"jack<-function(x){\n cat(\"Silly x:\")\n print(x) \n  }\n"
write(cstr, file='tfile.txt')
jack<-source('tfile.txt')$value # You need the value element!
print(jack)

However, I feel it would be more elegant if I could avoid the file, and am sure I must have missed some way to pipe the cstr through the source() function. Also, if the file cannot be written (directory permissions?), then my approach won't work.


JN

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to