zipfR: spc_vector – R documentation

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spc_vector

Create Vector of Spectrum Elements (zipfR)

Description

spc.vector returns a selected range of elements from a frequency spectrum as a plain numeric vector (which may contain entries with V_m = 0, unlike the spc object itself).

Usage

spc.vector(obj, m.min=1, m.max=15, all=FALSE)

Arguments

`obj`	an object of class `spc`, representing an observed or expected frequency spectrum
`m.min, m.max`	determine the range of frequency classes to be returned (defaulting to 1 ... 15)
`all`	if `TRUE`, a vector containing the entire frequency spectrum is returned, i.e. `m.max` is set to `max(obj$m)`. Note that the value of `m.min` can still be overridden manually to return only part of the spectrum.

Details

spc.vector(obj, a, b) is fully equivalent to Vm(obj, a:b) (and is implemented in this way).

Value

A numeric vector with the selected elements of the frequency spectrum. In this vector, empty frequency classes (V_m = 0) are represented by 0 entries (unlike the spc object, which omits all empty classes).

Examples

## Brown Noun spectrum
data(BrownNoun.spc)

## by default, extract first 15 elements
spc.vector(BrownNoun.spc)

## first five elements
spc.vector(BrownNoun.spc,1,5)

## just frequencies of spc elements 4 and 5 
spc.vector(BrownNoun.spc,4,5)
## same as
Vm(BrownNoun.spc,4:5)

zipfR

Statistical Models for Word Frequency Distributions

v0.6-70

GPL-3

Authors

Stefan Evert <stefan.evert@fau.de>, Marco Baroni <marco.baroni@unitn.it>

Initial release

2020-10-10