CODEWITHSUNDEEP
rchi-squared
Cauder
Cauder

Reputation: 2597

Error "all entries of 'x' must be nonnegative and finite"

I'd like to find out if there's a statistically significant difference in the conversion rate between two categories.

My data looks like this

    operating_system converted
1             Mac     FALSE
2             Mac     FALSE
3         Windows     FALSE
4         Windows      TRUE
5         Windows     FALSE
6             Mac      TRUE
7             Mac     FALSE
8         Windows     FALSE
9             Mac     FALSE
10            Mac     FALSE

I ran this code.

chisq.test(df)

And I received this error.

Error in chisq.test(df) : all entries of 'x' must be nonnegative and finite

Upvotes: 2

Views: 3339

Answers (1)

Clemsang
Clemsang

Reputation: 5481

chisq.test uses a contingency table :

df <- data.frame(operating_system = c("Mac", "Mac", "Windows", "Windows", "Windows", "Mac", "Mac", "Windows", "Mac", "Mac"),
             converted = c(F, F, F, T, F, T, F, F, F, F), stringsAsFactors = TRUE)

chisq.test(table(df))

Upvotes: 2

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