R language statistics a program running time function system time

Use ​​system.time​​​, If a program is used inside , Then use curly braces ​​{}​​ Cover up ！

Usage method ：

a = 1+1

system.time({a = 1+1})

Be careful ：

The program should be in the {} Inside .

Log in and copy

       

        > system.time({a = 1+1})
        
 user   System   pass  
        
   0    0    0
       
       

        
1.
        
2.
        
3.