Constructs iterators that generate regular sequences that follow the
`seq`

family.

## Usage

```
iseq(
from = 1,
to = NULL,
by = NULL,
length_out = NULL,
along_with = NULL,
...,
recycle = FALSE,
chunkSize,
chunks
)
iseq_along(along_with, ...)
```

## Arguments

- from
the starting value of the sequence.

- to
the end value of the sequence.

- by
increment of the sequence.

- length_out
desired length of the sequence. A non-negative number, which for

`seq`

will be rounded up if fractional.- along_with
the length of the sequence will match the length of this

- ...
Unused.

- recycle
Whether to restart the sequence after it reaches

`to`

.- chunkSize
Optional; return this many values per call.

- chunks
Optional; return this many chunks.

## Value

an iteror.

## Details

The `iseq`

function generates a sequence of values beginning with
`from`

and ending with `to`

. The sequence of values between are
determined by the `by`

, `length_out`

, and `along_with`

arguments. The `by`

argument determines the step size of the sequence,
whereas `length_out`

and `along_with`

determine the length of the
sequence. If `by`

is not given, then it is determined by either
`length_out`

or `along_with`

. By default, neither are given, in
which case `by`

is set to 1 or -1, depending on whether ```
to >
from
```

.