Top "Levels" questions

I have data frame with some numerical variables and some categorical factor variables. The order of levels for those factors …

This is my data: type<-rep(c(0,1),100) diff<-rnorm(100) data<-data.frame(type,diff) If I want …

Maybe this is simple but I can't find answer on web. I have problem with mean calculation by factors by …

Given the following mock data: set.seed(123) x <- data.frame(let = sample(letters[1:5], 100, replace = T), num = sample(1:10, 100, replace = …

training set trainSample <- cbind(data[1:980,1], data[1:980,2]) cl <- factor(c(data[1:980,3])) test set testSample <- data(…

I imported data from a .csv file, and attached the dataset. My problem: one variable is in integer form and …

I want to plot unused levels (that is, levels where the count is 0) in my bar-plot, however, unused levels are …

I think this has been up before, but could'nt find any answer to it. If it's already answered please point …

A have a real problem (and a headache) with an assignment... I'm in an introductory programming class, and I have …

I have a column in my data frame that is numbers 1, 2, 3, until 31. column is titled 'game' R tells me this …