lmccay opened a new pull request #302: KNOX-2310 URL: https://github.com/apache/knox/pull/302 (It is very **important** that you created an Apache Knox JIRA for this change and that the PR title/commit message includes the Apache Knox JIRA ID!) ## What changes were proposed in this pull request? A simple method for producing a meaningful mathematical report of a dataset would allow the user to quickly determine some basic metrics of a dataset. For instance, given a dataset with time series data across columns, an aggregation of: min max mean median mode sum for specific columns would provide a way to visualize the changes across time. knox:000> test.aggregate() columns "A,B,C" functions "min, max, mean, median, mode,sum" ===> +----------+----------------------+----------+----------+ | | A | B | C | +----------+----------------------+----------+----------+ | min | 100.0 | 200.0 | 300.0 | | max | 200.0 | 400.0 | 500.0 | | mean | 166.66666666666666 | 300.0 | 400.0 | | median | 200.0 | 300.0 | 400.0 | | mode | 200.0 | 200.0 | 300.0 | | sum | 500.0 | 900.0 | 1200.0 | +----------+----------------------+----------+----------+ ## How was this patch tested? Added new unit test and ran existing unit tests. Tested manually in KnoxShell. (Please explain how this patch was tested. For instance: running automated unit/integration tests, manual tests. Please write down your test steps as detailed as possible) (If this patch involves UI changes, please attach a screen-shot; otherwise, remove this) Please review [Knox Contributing Process](https://cwiki.apache.org/confluence/display/KNOX/Contribution+Process#ContributionProcess-GithubWorkflow) before opening a pull request.
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
