koRpus (version 0.04-27)

lex.div.num: Calculate lexical diversity

Description

This function is a stripped down version of lex.div. It does not analyze text, but takes the numbers of tokens and types directly to calculate measures for which this information is sufficient:

• "TTR"{The classicType-Token Ratio

"C"{Herdan's C} "R"{Guiraud's Root TTR} "CTTR"{Carroll's Corrected TTR} "U"{Dugast's Uber Index} "S"{Summer's index} "Maas" {Maas' ($a^2$)}

Usage

lex.div.num(num.tokens, num.types,
    measure = c("TTR", "C", "R", "CTTR", "U", "S", "Maas"))

Arguments

num.tokens

Numeric, the number of tokens.

num.types

Numeric, the number of types.

measure

A character vector defining the measures to calculate.

Value

• An object of class kRp.TTR-class.

code

lex.div

References

Maas, H.-D., (1972). Über den Zusammenhang zwischen Wortschatzumfang und Länge eines Textes. Zeitschrift für Literaturwissenschaft und Linguistik, 2(8), 73--96.

Tweedie. F.J. & Baayen, R.H. (1998). How Variable May a Constant Be? Measures of Lexical Richness in Perspective. Computers and the Humanities, 32(5), 323--352.

See Also

lex.div

Examples

lex.div.num(104, 43)