scala - How to extract the values from ParamMap in spark -


i'm using pipeline , crossvalidator parameter tuning in spark using scala. parammap containing best set of parameters, don't know how extract values parammap. let's parammap called params, try:

params(new param(????, "maxdepth", "description")

however first argument param must of type identifiable , don't know pass. help?

you can first check values in parammap : 

params.toseq.foreach(pair => {   println(s"${pair.param.parent} ${pair.param.name} ${pair.param.doc}")   println(pair.value) })

then retrieve 1 value : 

params(new param(parent, name, doc))

actually parent can string (not mandatorily identifiable)


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