Replace contents of factor column in R dataframe

Question

I need to replace the levels of a factor column in a dataframe. Using the iris dataset as an example, how would I replace any cells which contain virginic

Answer 1

I had the same problem. This worked better:

Identify which level you want to modify: levels(iris$Species)

    "setosa" "versicolor" "virginica" 

So, setosa is the first.

Then, write this:

     levels(iris$Species)[1] <-"new name"