abIseq | R Documentation |

Generation of abstract index vectors, i.e., objects of class
`"abIndex"`

.

`abIseq()`

is designed to work entirely like `seq`

,
but producing `"abIndex"`

vectors.

`abIseq1()`

is its basic building block, where
`abIseq1(n,m)`

corresponds to `n:m`

.

`c(x, ...)`

will return an `"abIndex"`

vector, when `x`

is one.

```
abIseq1(from = 1, to = 1)
abIseq (from = 1, to = 1, by = ((to - from)/(length.out - 1)),
length.out = NULL, along.with = NULL)
## S3 method for class 'abIndex'
c(...)
```

`from, to` |
the starting and (maximal) end value of the sequence. |

`by` |
number: increment of the sequence. |

`length.out` |
desired length of the sequence. A
non-negative number, which for |

`along.with` |
take the length from the length of this argument. |

`...` |
in general an arbitrary number of |

An abstract index vector, i.e., object of class
`"abIndex"`

.

the class `abIndex`

documentation;
`rep2abI()`

for another constructor;
`rle`

(base).

```
stopifnot(identical(-3:20,
as(abIseq1(-3,20), "vector")))
try( ## (arithmetic) not yet implemented
abIseq(1, 50, by = 3)
)
```

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