Hi,
I read up and played a bit with the new Matrix Stats aggregation that was committed to master recently. It is a nice addition for a number of use-cases and works quite well for numeric values.
What I am wondering now is if there is a way to apply the same concept on string fields. As an example if you have log-entries that contain the type of browser and the operating system where they originated, there will usually be a high correlation of mobile browsers to mobile operating systems.
Is there a way I can run queries that will allow me to find such statistical correlations?
I can probably use some machine learning tools like Mahout, but it would be nice being able to use only Elasticsearch for this.
Thanks... Dominik.