CODEWITHSUNDEEP
rboxplot
vicky
vicky

Reputation: 29

boxplot between two variables

I have the following data 

structure(list(one = c(15L, 9L, 4L, 34L, 17L, 18L, 14L, 12L, 
13L, 26L, 31L), two = c(31L, 35L, 29L, 28L, 12L, 18L, 30L, 14L, 
22L, 10L, 29L)), .Names = c("one", "two"), class = "data.frame", row.names = c(NA, 
-11L))

I need to first create a third variable which has the first 6 rows "A" and the other rows"B". I then need to create a boxplot between "one" and this variable. I tried doing

boxplot(category ~ one, mydata3, v= TRUE,main="boxplotrelationship")

but it won't work. Any help?

Upvotes: 1

Views: 523

Answers (1)

Edward R. Mazurek
Edward R. Mazurek

Reputation: 2177

I think I just answered part of your question in a similar question you asked, but here goes!

You have a couple problems here: first, your structure isn't assigned to any variable, so you can't reference it later in a boxplot. Below, see how I've assigned it to mydata3 first.

Also, since category is your grouping variable, it's not category ~ one, but the reverse -- one ~ category. 

mydata3 <- structure(list(one = c(15L, 9L, 4L, 34L, 17L, 18L, 14L, 12L, 
                       13L, 26L, 31L), two = c(31L, 35L, 29L, 28L, 12L, 18L, 30L, 14L, 
                                               22L, 10L, 29L)), .Names = c("one", "two"), class = "data.frame", row.names = c(NA, 
                                                                                                                              -11L))
mydata3[1:6,'category'] <- 'A'
mydata3[7:11, 'category'] <- 'B'
boxplot(one ~ category, mydata3,v=TRUE,main="boxplotrelationship")

Upvotes: 1

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