Question

我有一系列向量，我将其添加到DataFrame对象中以返回到R. 当我尝试添加一个包含长long元素的向量时会出现问题。

// [[Rcpp::export]]
DataFrame test()
{
std::vector<long long> x;
return DataFrame::create(Named("x") = x);
}

返回的错误是

g ++ -m64 -I“C：/R/R-30~1.1/include”-DNDEBUG -I“C：/R/R-3.0.1/library/Rcpp/include”-I“d：/ RCompile / CRANpkg / extralibs64 / local / include“-O2 -Wall -mtune = core2 -c quotes.cpp -o quotes.o在C：/R/R-3.0.1/library/Rcpp/include/RcppCommon中包含的文件中.h：117：0，来自C：/R/R-3.0.1/library/Rcpp/include/Rcpp.h：27，来自quotes.cpp：1：C：/R/R-3.0.1/library /Rcpp/include/Rcpp/internal/wrap.h：在函数'SEXPREC * Rcpp :: internal :: wrap_dispatch_unknown_iterable（const T＆amp;，Rcpp :: traits :: false_type）中[用T = long long int，SEXP = SEXPREC * ，Rcpp :: traits :: false_type = Rcpp :: traits :: integral_constant]'：C：/ R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h：691：98：从实例化'SEXPREC * Rcpp :: internal :: wrap_dispatch_unknown（const T＆amp;，Rcpp :: traits :: false_type）[T = long long int，SEXP = SEXPREC *，Rcpp :: traits :: false_type = Rcpp :: traits :: integral_constant]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h：723：96：从'实例化' SEXPREC * Rcpp :: internal :: wrap_dispatch_eigen（const T＆amp;，Rcpp :: traits :: false_type）[T = long long int，SEXP = SEXPREC *，Rcpp :: traits :: false_type = Rcpp :: traits :: integral_constant ]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h:740:80：从'SEXPREC * Rcpp :: internal :: wrap_dispatch_unknown_importable实例化（const T＆amp;，Rcpp：：traits :: false_type）[T = long long int，SEXP = SEXPREC *，Rcpp :: traits :: false_type = Rcpp :: traits :: integral_constant]'C：/R/R-3.0.1/library/Rcpp /include/Rcpp/internal/wrap.h:760:99：从'SEXPREC * Rcpp :: internal :: wrap_dispatch（const T＆amp;，Rcpp :: traits :: wrap_type_unknown_tag）实例化[带T = long long int，SEXP = SEXPREC *]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h：863：104：从'SEXPREC * Rcpp :: wrap（const T＆amp;）实例化[与T = long long int，SEXP = SEXPREC *]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h:193：3：[跳过14个实例化上下文] C：/ R /R-3.0.1/library/Rcpp/include/Rcpp/vector /Vector.h：395：9：从'static void Rcpp :: Vector :: replace_element__dispatch（Rcpp :: traits :: true_type，Rcpp :: Vector :: iterator，SEXP，int，const U＆amp;）实例化[与U = Rcpp :: traits :: named_object＆gt;，int RTYPE = 19，Rcpp :: traits :: true_type = Rcpp :: traits :: integral_constant，Rcpp :: Vector :: iterator = Rcpp :: internal :: Proxy_Iterator＆gt ;, SEXP = SEXPREC *]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/vector/Vector.h:384：9：从'static void Rcpp :: Vector :: replace_element（Rcpp ::）实例化Vector :: iterator，SEXP，int，const U＆amp;）[with U = Rcpp :: traits :: named_object＆gt;，int RTYPE = 19，Rcpp :: Vector :: iterator = Rcpp :: internal :: Proxy_Iterator＆gt;， SEXP = SEXPREC *]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/generated/Vector_ create.h：318：2：从'static Rcpp :: Vector Rcpp ::实例化:: Vector :: create _dispatch（Rcpp :: traits :: true_type，const T1＆amp;，const T2＆amp;，const T3＆amp;，const T4＆amp;，const T5＆amp;，const T6＆amp;）[with T1 = Rcpp :: traits :: named_object＆gt ;, T2 = Rcpp :: tra its :: named_object＆gt;，T3 = Rcpp :: traits :: named_object＆gt;，T4 = Rcpp :: traits :: named_object＆gt ;, T5 = Rcpp :: traits :: named_object＆gt ;, T6 = Rcpp :: traits：：named_object＆gt;，int RTYPE = 19，Rcpp :: Vector = Rcpp :: Vector＆lt; 19＆gt ;, Rcpp :: traits :: true_type = Rcpp :: traits :: integral_constant]'C：/R/R-3.0.1 /library/Rcpp/include/Rcpp/generated/Vector__create.h:288:37：从'static Rcpp :: Vector Rcpp :: Vector :: create实例化（const T1＆amp;，const T2＆amp;，const T3＆amp;，const T4＆amp; ，const T5＆amp;，const T6＆amp;）[T1 = Rcpp :: traits :: named_object＆gt;，T2 = Rcpp :: traits :: named_object＆gt ;,T3 = Rcpp :: traits :: named_object＆gt ;, T4 = Rcpp :: traits :: named_object＆gt;，T5 = Rcpp :: traits :: named_object＆gt;，T6 = Rcpp :: traits :: named_object＆gt;，int RTYPE = 19，Rcpp :: Vector = Rcpp :: Vector＆lt; 19＆gt; ]'C：/R/R-3.0.1/library/Rcpp/include/Rcpp/generated/DataFrame_generated.h:59:73：从'static Rcpp :: DataFrame Rcpp :: DataFrame :: create实例化（const T1＆amp; ，const T2＆amp;，const T3＆amp;，co nst T4＆amp;，const T5＆amp;，const T6＆amp;）[T1 = Rcpp :: traits :: named_object＆gt;，T2 = Rcpp :: traits :: named_object＆gt ;,T3 = Rcpp :: traits :: named_object＆gt;， T4 = Rcpp :: traits :: named_object＆gt;，T5 = Rcpp :: traits :: named_object＆gt;，T6 = Rcpp :: traits :: named_object＆gt;，Rcpp :: DataFrame = Rcpp :: DataFrame]'quotes.cpp ：58：26：从这里实例化C：/R/R-3.0.1/library/Rcpp/include/Rcpp/internal/wrap.h：474：11：错误：从'long long int'无效转换为'SEXP '[-fpermissive] make： * [quotes.o]错误1。

有没有办法将这种类型的矢量添加到DataFrame中？

Answer 1

遗憾的是，由于CRAN不允许长时间使用C标准。

此外，R本身只有数字（又称双精度）和整数。所以我建议你只使用double作为一种类型。

Rcpp，创建一个带有long long向量的数据帧

1 个答案: