Creating vectors from a dataframe

[Arunkumar Pillai]

Hi


I'm trying to use Linear Regression from ml library

but the problem is the independent variable should be a vector.

My code snippet is as as follows



    var dataDF = sqlContext.emptyDataFrame
    dataDF = sqlContext.sql("SELECT "+
dependentVariable+","+independentVariables +" FROM " + tableName)

val lr = new LinearRegression()
    lr.setMaxIter(10)
      .setRegParam(0.01)
      .setFitIntercept(true)

val model = lr.fit()


Here all the independe variables shoule be in Vector.

Please help



-- 
Thanks and Regards
        Arun