sfsmisc: unif – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

unif

Nice Uniform Points in Interval

Description

Give regularly spaced points on interval [-c,c] with mean 0 (exactly) and variance about 1 (very close for even n and larger round.dig). Note that c depends on n.

Usage

unif(n, round.dig = 1 + trunc(log10(n)))

Arguments

`n`	positive integer specifying the number of points desired.
`round.dig`	integer indicating to how many digits the result is rounded.

Value

numeric vector of length n, symmetric around 0, hence with exact mean 0, and variance approximately 1.

Note

It relies on the fact that Var(1,2,...,n) = n(n+1)/12.

Author(s)

Martin Maechler, ca 1990

Examples

(u <- unif(8))
var(u)

(u. <- unif(8, 12))# more digits in result, hence precision for Var :
var(u.)

sfsmisc

Utilities from 'Seminar fuer Statistik' ETH Zurich

v1.1-11

GPL (>= 2)

Authors

Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>), Werner Stahel [ctb] (Functions: compresid2way(), f.robftest(), last(), p.scales(), p.dnorm()), Andreas Ruckstuhl [ctb] (Functions: p.arrows(), p.profileTraces(), p.res.2x()), Christian Keller [ctb] (Functions: histBxp(), p.tachoPlot()), Kjetil Halvorsen [ctb] (Functions: KSd(), ecdf.ksCI()), Alain Hauser [ctb] (Functions: cairoSwd(), is.whole(), toLatex.numeric()*), Christoph Buser [ctb] (to function Duplicated()), Lorenz Gygax [ctb] (to function p.res.2fact()), Bill Venables [ctb] (Functions: empty.dimnames(), primes()), Tony Plate [ctb] (to inv.seq()), Isabelle Fl<fc>ckiger [ctb], Marcel Wolbers [ctb], Markus Keller [ctb], Sandrine Dudoit [ctb], Jane Fridlyand [ctb], Greg Snow [ctb] (to loessDemo()), Henrik Aa. Nielsen [ctb] (to loessDemo()), Vincent Carey [ctb], Ben Bolker [ctb], Philippe Grosjean [ctb], Fr<e9>d<e9>ric Ibanez [ctb], Caterina Savi [ctb], Charles Geyer [ctb], Jens Oehlschl<e4>gel [ctb]

Initial release

2021-04-03