[ https://issues.apache.org/jira/browse/MAHOUT-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-1753: ------------------------------------- Resolution: Fixed Status: Resolved (was: Patch Available) github PR has been reviewed and committed. > First and second moment routines > --------------------------------- > > Key: MAHOUT-1753 > URL: https://issues.apache.org/jira/browse/MAHOUT-1753 > Project: Mahout > Issue Type: Blog - New Blog Request > Reporter: Dmitriy Lyubimov > Assignee: Dmitriy Lyubimov > Fix For: 0.10.2 > > > R analogs: mean(), rowCols(), rowMeans(), variance(), sd(). > Since it presents an efficiency problem to compute second and first moment as > two different routines, this issue suggest to unify computation of both first > and second moments in the same routine. > For completeness, we do both in-core and distriuted variations, by convention > prepending distributed versions with "d" letter: > colMeanVars() > colMeanStdevs() > dcolMeanVars() > dcolMeanStdevs() -- This message was sent by Atlassian JIRA (v6.3.4#6332)