Hi all, I'm looking for better ways of dealing with lists of objects. If I have a list s, I want to be able to so an operation like: s["hello"][3,3] <- 100 where I replace the (3,3) element with 100. Below I show the way I've done this so far, but for large lists I don't want to have to manually create new objects every time. Is there a better way to cast every object in an Rcpp::List?
Thanks, Chris library(inline) library(Rcpp) fx <- cxxfunction(,"",includes= ' // Take the element of s named "hello" and put 100 in the (2,2) element Rcpp::List listExample(Rcpp::List s) { Rcpp::NumericMatrix sm = s["hello"]; sm(2,2) = 100; s["hello"] = sm; return s; } RCPP_MODULE(foo){ function( "listExample", &listExample ) ; } ', plugin="Rcpp") foo <- Module("foo",getDynLib(fx)) s <- list(hello=matrix(1:9,3,3)) foo$listExample(s)
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