# Vega Kibana Tree Visualization ignore missing parent node
**URL:** https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712
**Category:** Kibana
**Tags:** vega
**Created:** [November 25, 2020, 8:47pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712 "2020-11-25T20:47:24Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@ejmath12](https://discuss.elastic.co/u/ejmath12)
#### Post date: [November 25, 2020, 8:47pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712/1 "2020-11-25T20:47:24Z")
Is there a way to gracefully handle missing parent node in kibana/vega tree visualization? For example, if the below json represents data, since X is non existent parent is it possible to ignore that link?
```auto
[
{"id": "A", "parent": null},
{"id": "B", "parent": "A"},
{"id": "C", "parent": "X"}
]
```
---
### Author:  [@wylie](https://discuss.elastic.co/u/wylie)
#### Post date: [November 25, 2020, 9:08pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712/2 "2020-11-25T21:08:53Z")
This is more of a Vega question than a Kibana question, but we can try to answer. I think this is technically possible, but I don't see why you would want to: the format you've shown is what Vega expects for their [tree layout examples](https://vega.github.io/vega/examples/tree-layout/).
If you want to change it, you can [filter it out rows with missing parents](https://vega.github.io/vega/docs/transforms/filter/), or [impute a different value for the parent](https://vega.github.io/vega/docs/transforms/impute/), or maybe come up with some other Vega formula.
---
### Author:  [@ejmath12](https://discuss.elastic.co/u/ejmath12)
#### Post date: [November 25, 2020, 9:18pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712/3 "2020-11-25T21:18:45Z")
Yes, the format here works, but I believe the transform to convert this to tree(stratify) throws error missing: X (as X is not in the ids). Let me go through your suggestions to see if they help.
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### Author:  [@wylie](https://discuss.elastic.co/u/wylie)
#### Post date: [November 25, 2020, 9:34pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712/4 "2020-11-25T21:34:32Z")
Sounds like you might be configuring something incorrectly. The docs for stratify are here: [https://vega.github.io/vega/docs/transforms/stratify/](https://vega.github.io/vega/docs/transforms/stratify/)
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 23, 2020, 9:34pm UTC](https://discuss.elastic.co/t/vega-kibana-tree-visualization-ignore-missing-parent-node/256712/5 "2020-12-23T21:34:38Z")
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