Description Usage Arguments Value Examples
OneHotEncoder.fit fits an OneHotEncoder object
1 |
X |
A matrix or data.frame, which can include NA |
Returns an object of S4 class OneHotEncoder
1 2 3 4 5 6 7 8 9 10 11 12 13 | # matrix input
X1 <- matrix(c(0, 1, 0, 1, 0, 1, 2, 0, 3, 0, 1, 2),c(4,3),byrow=FALSE)
oenc <- OneHotEncoder.fit(X1)
z <- transform(oenc,X1,sparse=TRUE)
# return a sparse matrix
print(z)
# data.frame
X2 <- cbind(data.frame(X1),X4=c('a','b','d',NA),X5=factor(c(1,2,3,1)))
oenc <- OneHotEncoder.fit(X2)
z <- transform(oenc,X2,sparse=FALSE)
# return a dense matrix
print(z)
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