Github user Leemoonsoo commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/133#issuecomment-118099387
Tested with following case and Looks good to me.
```
val wbIPR=Array(8.40, 8.09, 7.56, 6.83, 5.88,
4.72, 3.36, 1.78, 0.0)
val
pressureIPR=Array(0.00,10000000.00,20000000.00,30000000.00,40000000.00,50000000.00,60000000.00,70000000.00,80000000.00)
case class IPR (w:Array[Double],p:Array[Double])
val iprInit=IPR(wbIPR,pressureIPR)
val iprList=sc.parallelize((1.0 to 0.9 by -0.001).map(k =>
IPR(iprInit.w.map(_ * k), iprInit.p)).zipWithIndex,5)
iprList.count()
```
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