Are there some solution to complete the transform category variables into dummy variable in scala or spark ?

[zml张明磊]

Hi ,

         I am a new to scala and spark. Recently, I need to write a tool that 
transform category variables to dummy/indicator variables. I want to know are 
there some tools in scala and spark which support this transformation which 
like pandas.get_dummies in python ? Any example or study learning materials for 
me ?

Thanks,
Minglei.