title: Can I convert pandas dataframe to spark rdd?
body: <p>Pbm: </p>
  
  <p>a) Read a local file into Panda dataframe say PD_DF
  b) Manipulate/Massge the PD_DF and add columns to dataframe
  c) Need to write PD_DF to HDFS using spark.  How do I do it ?</p>