How to do Naive Bayes in R?
On Wednesday 06 May 2009, Tim LIU wrote:
I am wondering if anybody here have a simple example in R for Naive Bayes. For example, I can do k-means clustering on the "iris" data - data(iris) cl <- kmeans(iris[,1:4], 3) cl$cluster cbind(1:150,iris$Species) =========== But how to do Naive Bayes classification in the same "iris" data? Many thanks!
# start here:
help.search('bayes')
# in which you will find:
e1071::naiveBayes
# which means:
library(e1071)
?naiveBayes
# and compared to your example:
cl <- kmeans(iris[,1:4], 3)
table(cl$cluster, iris[,5])
m <- naiveBayes(iris[,1:4], iris[,5])
table(predict(m, iris[,1:4]), iris[,5])
Dylan
Dylan Beaudette Soil Resource Laboratory http://casoilresource.lawr.ucdavis.edu/ University of California at Davis 530.754.7341