[GitHub] incubator-spark pull request: Principal Component Analysis

[rezazadeh]

Github user rezazadeh commented on the pull request:

    https://github.com/apache/incubator-spark/pull/564#issuecomment-34582915
  
    Good catch, added handling of the zeros. Once we have unified sparse data 
support I will revisit this, tracked by: 
https://spark-project.atlassian.net/browse/MLLIB-18