googlegenomics/spark-examples — pull request #14 by elmer-garduno (2014-09-14 05:34:11+00:00)
Title: Improvements on PCA code

Improvements on the implementation of PCA code:
- Center the similarity matrix.
- Emit only half of the elements on PCA example, reconstruct the matrix using the symmetry property.

Fixed errors that prevented from merging with main.
- Upgrade to scala 2.10.4 to prevent errors with sbt.
- Stop SparkContext on all examples.