#include using namespace Rcpp; // [[Rcpp::export]] LogicalVector one_unique_num(NumericVector x) { int n = x.size(); double first_val = x[0]; for(int i = 1; i < n; ++i) { if (x[i] != first_val) return false; } return true; } // [[Rcpp::export]] LogicalVector one_unique_char(CharacterVector x) { int n = x.size(); String first_val = x[0]; for(int i = 1; i < n; ++i) { if (x[i] != first_val) return false; } return true; }