simplest way to count number of ones in an array in R

Question

Is there a function which I can use to count the number of ones in an array in R? I was looking for something which would save me the overhead of ``` count = 0; myarray = c(1,1,0,1,0) for(i in 1:length(myarray)) { if(myarray[i] == 1) { count = count+1 } } ```

Accepted Answer

If it is binary,

```
 sum(!!myarray) 
 #[1] 3
```

Or

```
 sum(myarray) #based on comments from @thelatemail
```

If not binary,

```
sum(myarray==1)
```

simplest way to count number of ones in an array in R

Solution

Problem