Install ggiraph in MacosX

 nano ~/.R/Makevars

Ajouter :

CPPFLAGS=-I/opt/homebrew/include

LDFLAGS=-L/opt/homebrew/lib

Sauvegarder puis relancer R et installer :

install.packages("ggiraph", type="source")

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Standard error from Hessian Matrix... what can be done when problem occurs

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stepAIC from package MASS with AICc

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Multivariable analysis and correlation of iconography

Image
Introduction Correlation iconography is a not very well known method to study multivariate data. It was developed long-time ago by Michel Lesty: Lesty M (1999) Une nouvelle approche dans le choix des régresseurs de la régression multiple en présence d'intéractions et de colinearités. La revue de Modulad 22:41-77 It is also well described in a French Wikipedia page: https://fr.wikipedia.org/wiki/Iconographie_des_corrélations After checking the possibilities of this method, I think that it deserves more attention. Let take the example of the wikipedia page: dta <- read.table(text=gsub(",", ".", "Élève Poids Âge Assiduité Note e1 52 12 12 5 e2 59 12,5 9 5 e3 55 13 15 9 e4 58 14,5 5 5 e5 66 15,5 11 13,5 e6 62 16 15 18 e7 63 17 12 18 e8 69 18 9 18"), header=TRUE) > dta   Élève Poids  Âge Assiduité Note 1    e1    52 12.0        12  5.0 2    e...
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