To count TRUE values in logical vector in R, you can use **sum()** function.

The following method shows how you can do it with syntax.

**Method: Use sum() Function**

```
sum(vector)
```

The following example shows how to count TRUE valeus from logical vector in R.

## Using sum() Function

Let’s see how we can use sum() function to count TRUE values in logical vector:

```
# Define vector
Status <- c(TRUE,TRUE,FALSE,TRUE,FALSE,FALSE,TRUE,FALSE)
# Count TRUE value
s <- sum(Status)
# Print count
print(s)
```

Output:

```
[1] 4
```

Here the output shows count of TRUE values from logical vector. While using **sum()** function it takes *TRUE* as 1 and *FALSE* as 0.