How do I prevent source() R code being included more than once?
-
29-10-2019 - |
Question
I have lots of R source files. For example, in both A.R
and C.R
files, B.R
is loaded via source()
. Now I'd like to use the functions in both A.R
and C.R
, how can I avoid sourcing B.R
repeatedly? Is there any include guard mechanisms similar in C/C++?
No correct solution
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