ffseq: Sequence Generation of 'ff' vectors.

In ffbase: Basic Statistical Functions for Package 'ff'

Description

Similar as seq in the base package, generating an ff vector.

Usage

ffseq(
  from = 1,
  to = 1,
  by = ((to - from)/(length.out - 1)),
  length.out = NULL,
  along.with = NULL,
  ...
)

Arguments

from	the starting value of the sequence
to	the end (maximal) value of the sequence
by	number, increment of the sequence
length.out	desired length of the sequence. Only non-negative numbers larger than 0 are allowed.
along.with	take the length from the length of this argument
...	arguments passed to or from methods

Value

An ff vector with the generated sequence, similar as what seq generates but as an ff vector.
Mark: in case this would generate a sequence of length 0, will return integer().

See Also

seq

Examples

## ffseq_len
ffseq_len(1000)
ffseq_len(1000000)

## ffseq
ffseq(from = 1, to = 4, by = 1)
ffseq(from = 1, to = 4, by = 0.5)
ffseq(from = 4, to = 1, by = -0.5)
ffseq(from = -100, to = 100, by = 0.3)
ffseq(from = 2, to = -100, length.out = 4)
ffseq(from = 2, to = -100, length.out = 4)
ffseq(from = 2, along.with=1000)
ffseq(to = 2, along.with=1000)
ffseq(along.with=1000)
ffseq(length.out=1000000)

ffbase documentation built on Feb. 27, 2021, 5:06 p.m.