# Extract value from field for visualization **URL:** \ **Category:** Kibana\ **Created:** [February 3, 2019, 12:34am UTC](https://discuss.elastic.co/t/extract-value-from-field-for-visualization/166842 "2019-02-03T00:34:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![j0ebeer](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@j0ebeer](https://discuss.elastic.co/u/j0ebeer)\ **Post date:** [February 3, 2019, 12:34am UTC](https://discuss.elastic.co/t/extract-value-from-field-for-visualization/166842/1 "2019-02-03T00:34:18Z")
Is it possible to extract from a parsed field and then visualize that number? Example, I want to show my firewall's current user session and that is already parsed out as Subject but I don't want the whole message, just the number of concurrent sessions. Below is the log. It shows as indexed subject and I can create a graph showing how many messages contain "concurrent sessions" but what I really want is a graph dial showing the number 170. subject Performance statistics: average CPU: 0, memory: 20, concurrent sessions: 170, setup-rate: 5 Possible? Cheers... ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [February 3, 2019, 1:27am UTC](https://discuss.elastic.co/t/extract-value-from-field-for-visualization/166842/2 "2019-02-03T01:27:24Z")
You should really do that before sending it to Elasticsearch. You might be able to do this with a script, but it'd be messy and expensive. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 3, 2019, 1:27am UTC](https://discuss.elastic.co/t/extract-value-from-field-for-visualization/166842/3 "2019-03-03T01:27:32Z")
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