尝试将具有多个布尔列的数据框融化或折叠到包含id列和折叠值列的两列数据库中,但每个值都会导致新行。
示例开头:
API token
所需的输出:
A S1 S2 S3 S4
1 ex1 1 0 0 0
2 ex2 0 1 0 0
3 ex3 0 0 1 0
4 ex4 1 1 0 0
5 ex5 0 1 0 1
6 ex6 0 1 0 0
7 ex7 1 1 1 0
8 ex8 0 1 1 0
9 ex9 0 0 1 0
10 ex10 1 0 0 0
谢谢!
答案 0 :(得分:1)
在基数R中:
#include <vector>
#include <string>
using namespace std;
vector<string> vec1;
//vec1. //completion does not work AND break the completion that used to work if left without semicolon.
int main(){
vector<string> vec2;
vec2.push_back("sometext"); //completion works
vec1.push_back("sometext"); //works here too
return 0;
}