# NaNs present in prediction

**URL:** <https://community.konduit.ai/t/nans-present-in-prediction/1268>\
**Category:** DL4J\
**Created:** [March 22, 2021, 6:19pm UTC](https://community.konduit.ai/t/nans-present-in-prediction/1268 "2021-03-22T18:19:10Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![treo](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.konduit.ai/treo/32/47_2.png) [@treo](https://community.konduit.ai/u/treo)\
**Post date:** [March 23, 2021, 12:30pm UTC](https://community.konduit.ai/t/nans-present-in-prediction/1268/4 "2021-03-23T12:30:15Z")

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> [@DarioArena87](#):
>
> in learning DeepLearning4j to me the difficulties are grasping some of the “outline” concepts (ETL for inputs that does not come from CSVs, configuration for evaluation vs predictions ecc…)

Feedback on that is always welcome 🙂

I know from first hand experience, that some of those things can be somewhat hard to get at first and we want to improve the documentation, so if you can make a list of the questions you’d like to see addressed, that would be great.

Ideally, you’ll add them here: [Documentation Requests](https://community.konduit.ai/t/documentation-requests/1271)

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