Creating a Chi Square visualization matrix for Chi Square tests on every pair of categorical variable

General
1

Hi there! I am currently doing Chi Square testing on the categorical variables here which I extracted from my original titanic dataset, containing: Survived, Pclass, Sex, Embarked, FareGroup, AgeGroup, FamilyGroup, Title columns
I have found a method that iteratively tabulates the Chi Square for each pair as shown:

> titanic_chi = subset(titanic, select = c(Survived,Pclass,Sex,Embarked,FareGroup,AgeGroup,FamilyGroup,Title))
> titanic_chi[sapply(titanic_chi,is.character)]<-lapply(titanic_chi[sapply(titanic_chi,is.character)],as.factor)
> eg<-expand.grid(names(titanic_chi),names(titanic_chi))
> eg<-eg[-which(eg$Var1==eg$Var2),]
> for(i in 1:nrow(eg)) {
+     print(rep("#",20))
+     cat(as.character(eg[i,1]),as.character(eg[i,2]),"\n")
+     print(chisq.test(table(df[,eg[i,1]],df[,eg[i,2]])))
+ }

Now the issue is this:

image
image1400×750 48.8 KB

The result is a lot of pairs, and I was thinking if this could be represented in a visualization similar to a correlation coefficient matrix? As it is a little hard to see all the pairs in this way.

2

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.

If you have a query related to it or one of the replies, start a new topic and refer back with a link.