so, I did this:
B= list("a" = 1, "b" = 2, "c" = 3)
.C("myfunction", B)
the c code is :
SEXP myfunction(SEXP matrix_temp)
{
Rprintf("this element is %6.3f", REAL(VECTOR_ELT(matrix_temp,1))[0]);
}
but after runing the R code, it says Error: VECTOR_ELT() can only be applied
to a 'list', not a 'NULL'
I guess this is because I did not acturally pass a list to the c function,
but why is that?
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