`iv_pairwise_between()`

detects when `x`

, a vector, falls between the
bounds of `y`

, an iv, *pairwise*, where pairwise means that the i-th value
of `x`

is compared against the i-th interval of `y`

. This is in contrast to
`iv_between()`

, which works more like base::%in%.

These functions return a logical vector the same size as the common size of
`x`

and `y`

.

## Arguments

- x, y
`[vector, iv]`

`x`

should be a vector and`y`

should be an iv.`x`

should have the same type as the start/end components of`y`

.These will be recycled against each other.

## Examples

```
x <- as.Date(c("2019-01-01", "2019-01-08", "2019-01-21"))
y <- iv_pairs(
as.Date(c("2019-01-01", "2019-01-03")),
as.Date(c("2019-01-07", "2019-01-09")),
as.Date(c("2019-01-18", "2019-01-21"))
)
x
#> [1] "2019-01-01" "2019-01-08" "2019-01-21"
y
#> <iv<date>[3]>
#> [1] [2019-01-01, 2019-01-03) [2019-01-07, 2019-01-09) [2019-01-18, 2019-01-21)
# Does the i-th value of `x` fall between the i-th interval of `y`?
iv_pairwise_between(x, y)
#> [1] TRUE TRUE FALSE
a <- c(1, NA, NA)
b <- iv_pairs(c(NA, NA), c(3, 4), c(NA, NA))
# Missing intervals always propagate
iv_pairwise_between(a, b)
#> [1] NA NA NA
```