CODEWITHSUNDEEP
ranova
Davide Piffer
Davide Piffer

Reputation: 113

When running boxplor or anova: Error in boxplot.default(split(mf[[response]], mf[-response])

I have a file that I formatted for ANOVA but for I cannot run the function boxplot nor aov on it. It can be downloaded from this link: When running "boxplot(AnovaPolyg.boxplot(AnovaPolyg...Sheet1$Frequency~AnovaPolyg...Sheet1$Race)..Sheet1$Frequency~AnovaPolyg...Sheet1$Race) or

anov.aov=aov(AnovaPolyg...Sheet1$Race~AnovaPolyg...Sheet1$Frequency)

I get the following error:

Error in boxplot.default(split(mf[[response]], mf[-response]), ...) : adding class "factor" to an invalid object

Can someone please check the data file and tell me if they spot the problem?

Upvotes: 0

Views: 8618

Answers (2)

VishnuVardhanA
VishnuVardhanA

Reputation: 607

I just the same error when i tried to do boxplot between two binary variables. Instead when tried for boxplot between one binary and one scale variable, error is gone. Just my thoughts.

Upvotes: 0

Tad Dallas
Tad Dallas

Reputation: 1189

I don't follow your examples, but I think the issue could be when you read in the data, it is treating Frequency as a factor. This is because on line 25838, the entry is 0,1 instead of 0.1. Fix this, read the data back in, check to make sure it's numeric (str will help with this), and you should be good to go.

Upvotes: 1

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