h2o.relevel | R Documentation |
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"
## End(Not run)
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