cr_symb: A function to create symbols
In spqdep: Testing for Spatial Independence of Qualitative Data in Cross Section

cr_symb

R Documentation

A function to create symbols

Description

This function obtains the set of symbols to get the Q-statistic

Usage

cr_symb(k = k, m = m)

Arguments

`k`	number of categories
`m`	length of the m-surrounding

Details

...

Value

A list with two types of symbols. Permutation and Combinations-totals

`p_symb`	Matrix with symbols (permutations)
`c_symb`	Matrix with symbols (combinations)

Author(s)

Fernando López	fernando.lopez@upct.es
Román Mínguez	roman.minguez@uclm.es
Antonio Páez	paezha@gmail.com
Manuel Ruiz	manuel.ruiz@upct.es

References

Ruiz M, López FA, A Páez. (2010). Testing for spatial association of qualitative data using symbolic dynamics. Journal of Geographical Systems. 12 (3) 281-309

Examples


# Example 1: Obtain symbols for k=2 classes and m-surroundings of size 5
symb25 <- cr_symb(2,5)
symb25$p_symb # Permutations symbols
symb25$c_symb # Combinations-totals symbols

spqdep documentation built on March 28, 2022, 5:06 p.m.