访问Rcpparmadillo中的列表中的元素？

Question

I am working with Rcpparmadillo and get an question about how to reach the elements in list.

It is understandable to do that when I return the values to R, now I want to know how to do that in c++, in other words, the list generated from a function is still be referred in c++.

For example, I have a function:

    List foo(...){
         .....
         return List::create(Named("example1") = example1, Named("example2") = example2)
    }

Now I have another function in C++ and example1 is a variable in the function, so how to reach example1 in C++.

Thanks in advance. I am not familiar with C++.

Answer 1

我意识到返回值现在是一个列表，可以通过Rcpp::as<arma::mat>(...)进行转换，'...'可以由列表名称和您想要的元素填充范围内，R中的总内容相同。感谢@DirkEddelbuettel的帮助。