comb_mod: Creation of 2-by-2 comparison vectors from factor

In mrelnoob/airpoumpoum: Multi-use package for ecological studies

Description

Creates a list of two vectors that contains all possible combinations of modalities of the input factor. Useful to perform 2-by-2 comparisons (e.g. post-hoc tests). Therefore, it gives 2 vectors of length L = (n*n-1)/2, where n is the number of different modalities (i.e. factor levels) contained in FAC. For example, if the input factor contains 3 modalities A, B and C, comb_mod will give AB, AC and BC (in that order).

Usage

comb_mod(FAC)

Arguments

FAC	A factor containing the modalities that need to be combined.

Value

A list of two vectors.

Note

The comb_mod function always returns a list of 2 vectors.

Examples

# aa1 <- comb_mod(FAC = mydata$treatment)$mod1
# aa2 <- comb_mod(FAC = mydata$treatment)$mod2
# Le $mod1 ou 2 permet de dire lequel des 2 vecteurs d'output tu souhaites dans l'objet créé
# (puisque la fonction comb_mod créé toujours une liste de 2 vecteurs).
# Sans cette précision, la fonction créerait 2 objets identiques (aa1 et aa2):
# 2 liste contenant les 2 vecteurs

mrelnoob/airpoumpoum documentation built on Feb. 11, 2020, 8:19 p.m.