Rcpp::DataFrame pData =pheno.slot("data")
这在clang ++上失败但是用g ++成功
error: conversion from 'Rcpp::SlotProxyPolicy<Rcpp::S4_Impl<PreserveStorage> >::SlotProxy' to 'Rcpp::DataFrame' (aka 'DataFrame_Impl<PreserveStorage>') is ambiguous
Rcpp::DataFrame fsdata = fspd.slot("data");
^ ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜