How to migrate R decision tree to Java I have trained a conditional inference decision tree in R using library party with function ctree and saved the model in an .Rda file. 

I need to migrate this model from R to Java so that I can utilise the tree to make predictions in a Java environment. Can someone please point me in the right direction on how I can do this?
You could convert your decision tree model to the PMML format. In Java you could use JPMML to parse/read the model and predict.