# Pre-processing data for analysis/visualisation - kibana or elsewhere?

**URL:** <https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583>\
**Category:** Kibana\
**Created:** [November 5, 2019, 10:02am UTC](https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583 "2019-11-05T10:02:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![cpeter](https://avatars.discourse-cdn.com/v4/letter/c/5f8ce5/32.png) [@cpeter](https://discuss.elastic.co/u/cpeter)\
**Post date:** [November 5, 2019, 10:02am UTC](https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583/1 "2019-11-05T10:02:06Z")

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Hi,  
I got some indices the data of wich are not optimal for my analysis goals. Where/how can I manipulate them? It's about

- the type of the fields
- the names
- merging fields (e.g. Christmas and X-mas should both become Xmas)

What options does kibana offer here?

Generally, I wonder where in the pipeline it's best to prepare the data to finally process them in kibana.  
I feel that it is best to prepare the data before I ingest them into elasticsearch...

Thanks a lot,

Christian

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**Author:** ![Nathan\_Reese](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nathan_reese/32/84829_2.png) [@Nathan\_Reese](https://discuss.elastic.co/u/Nathan_Reese)\
**Post date:** [November 8, 2019, 8:32pm UTC](https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583/2 "2019-11-08T20:32:32Z")

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Its best to clean your data at ingestion. You can use [ingest node](https://www.elastic.co/guide/en/elasticsearch/reference/7.4/ingest.html) to to pre-process documents before the actual document indexing happens.

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<div class="post-metadata">

**Author:** ![cpeter](https://avatars.discourse-cdn.com/v4/letter/c/5f8ce5/32.png) [@cpeter](https://discuss.elastic.co/u/cpeter)\
**Post date:** [November 11, 2019, 11:50am UTC](https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583/3 "2019-11-11T11:50:12Z")

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Thanks a lot, Nathan. That's what I assumed and what seems sensible to me, too.  
So I take it that Kibana doesn't really offer options for performing the above mentioned transformations? Or if it does, could you point me to the right section there? I am just beginning digging deeper into Kibana.  
Thanks again,  
Christian

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 9, 2019, 11:50am UTC](https://discuss.elastic.co/t/pre-processing-data-for-analysis-visualisation-kibana-or-elsewhere/206583/4 "2019-12-09T11:50:19Z")

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