R/frame.R
h2o.relevel.Rd
The levels of a factor are reordered os that the reference level is at level 0, remaining levels are moved down as needed.
h2o.relevel(x, y)
x | factor column in h2o frame |
---|---|
y | reference level (string) |
new reordered factor column
# NOT RUN { library(h2o) h2o.init() # Convert iris dataset to an H2OFrame iris_hf <- as.h2o(iris) # Look at current ordering of the Species column levels h2o.levels(iris_hf["Species"]) # "setosa" "versicolor" "virginica" # Change the reference level to "virginica" iris_hf["Species"] <- h2o.relevel(x = iris_hf["Species"], y = "virginica") # Observe new ordering h2o.levels(iris_hf["Species"]) # "virginica" "setosa" "versicolor" # }