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Chi-square tests

In addition to Pearson's correlations and t-tests, chi-square tests and contingency tables are useful tools to assess associations between two categorical variables. In this exercise you will create basic and customized contingency tables and perform Chi-square tests.

As explained in the preceding video, when using the dplyr pipe %>% operator, you will need to nest the table() and gmodels::CrossTable() functions inside the with() function.

The abaloneKeep dataset, dplyr and gmodels packages have been loaded for you.

Bu egzersiz

R For SAS Users

kursunun bir parçasıdır
Kursu Görüntüle

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

# Create frequency table of sex by agecat
___ <- ___ %>% 
  with(___)
Kodu Düzenle ve Çalıştır