Amit - 8 months ago 49

R Question

I have a vector in R

`myVect <- c(1,2,3,4)`

Output i am looking for is

`1-2-3-4 =-8`

Is there a function that i can use for this

Thanks

Answer

We can use `Reduce`

with `-`

```
Reduce(`-`, myVect)
#[1] -8
```

Or use `sum`

```
sum(c(myVect[1], -1*myVect[-1]))
#[1] -8
```