cannot contribute, permission denied.

Hello, I created a branch from develop for https://github.com/PredictionIO/template-scala-parallel-complementarypurchase/tree/develop/src/main/scala I'm implementing evaluation for complimentary purchase right now. And wanted to push a commit, but get "permission denied". Can you please

evaluation for complimentary purchase template: help!

Please, someone, send me a hint, how the DataSource.Scala file has to look like to be able to run pio eval for the complimentary purchase engine!

complimentary purchase - which evaluation metrics to choose?

Hello, I try to build now the Evaluator for complimentary purchase engine. Which metrics should I choose, can someone please give an advice? Thanks, Alexey

Fwd: complimentary purchase - which evaluation metrics to choose?

Hello, I try to build now the Evaluator for complimentary purchase engine. Which metrics should I choose, can someone please give an advice? Thanks, Alexey

error at pio train

Hello, starting pio train gives me this error: Exception in thread "main" java.lang.NoSuchMethodError: org.json4s.ParserUtil$.quote(Ljava/lang/String;)Ljava/lang/String; tried another versions of this json4s, no luck. Using spark 2.4.0 Does someone know the fix? thx, Alexey ps. Btw,

postgres installation problem

Hello, Im trying to follow the docs: https://predictionio.apache.org/install/install-sourcecode/ There is a step there, which doesnt work: $ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start After running it I get: pg_ctl:*directory "/usr/local/var/postgres"

Where to put data for training

Hello, I prepare a json file with dataset to be trained on. Where should I put it so that i can use pio train on it? Thank you!

JAVA_HOME is not set

Hello, I installed newest pio 0.14 with docker. (ubuntu 18.04) After starting pio -> I get "JAVA_HOME is not set" Does anyone know where in docker config I have to setup the JAVA_HOME env variable? Thanks  a lot! Alexey

Re: Evaluator for complimentary purchase

the evaluator. There is a guide at https://predictionio.apache.org/evaluation/. Regards, Donald On Fri, Jun 21, 2019 at 7:15 AM Alexey Grachev <mailto:alexey.grac...@turbinekreuzberg.com>> wrote: Hello dear pio users. I try to implement the complimentary purchase engine template

Evaluator for complimentary purchase

Hello dear pio users. I try to implement the complimentary purchase engine template (https://predictionio.apache.org/templates/complementarypurchase) but cannot find evaluation section nowhere. Can someone please recommend me a resource for that? google stays silent. Thanks a lot in