Now I would like to call R code from c++ and R code return a dynamic length of integer array.
I used
length(eval(VECTOR_ELT(expression,1),R_GlobalEnv))
to return the length of result array in c++, but it did not work.
What can I do to get the length?
Thank you very much!
Baiyi Song
CEI Dortmund Univercity
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