# How to analyze the quality of an assembly using only the table statstics from bandage ingo

**URL:** <https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992>\
**Category:** usegalaxy.org support\
**Tags:** assembly\
**Created:** [March 22, 2024, 9:25pm UTC](https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992 "2024-03-22T21:25:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![A01704799](https://avatars.discourse-cdn.com/v4/letter/a/da6949/32.png) [@A01704799](https://help.galaxyproject.org/u/A01704799)\
**Post date:** [March 22, 2024, 9:25pm UTC](https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992/1 "2024-03-22T21:25:52Z")

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Hi, I was wondering if someone knew how to analyze the quality of an assembly. I used bandage info and the result was a table with different statistics, like node lenght, dead ends… I know what each of the metrics mean however i do not know how to determine wether the results were of good quality or not.

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**Author:** ![abueg](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/abueg/32/3301_2.png) [@abueg](https://help.galaxyproject.org/u/abueg)\
**Post date:** [March 25, 2024, 9:01pm UTC](https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992/2 "2024-03-25T21:01:34Z")

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Hello! 👋

What type of assembly did you perform, i.e., is this a _de novo_ assembly for one individual, or a metagenomic project?

Speaking for the _de novo_ assembly case – “good quality” is relative, but you can get an idea of how fragmented your graph is by looking at `percentage dead ends`. For instance, this is a graph with ~16% dead ends:

 ![image](https://us1.discourse-cdn.com/flex020/uploads/galaxy/original/2X/0/0d872a9f219998c2683f4b3e7529a50db67178ab.jpeg)

And this is a graph with ~4% dead ends:

 ![image](https://us1.discourse-cdn.com/flex020/uploads/galaxy/original/2X/2/26aa35df809fa44e4d041e4f5e8d26f95f2d88c9.jpeg)

(I know the images are really faint 😞 try opening in a different tab)

That being said, I usually find it more helpful to look at the output of the `Bandage Image` tool to get a drawing of your assembly graph, instead! Looking at the graph visually helps me understand my results more than the table of stats, typically. Here is the tool: [Galaxy](https://usegalaxy.org/root?tool_id=toolshed.g2.bx.psu.edu/repos/iuc/bandage/bandage_image/2022.09+galaxy4)

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [March 25, 2024, 11:23pm UTC](https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992/3 "2024-03-25T23:23:22Z")

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REF: Learn at GTN → [Hands-on: Unicycler Assembly / Assembly](https://training.galaxyproject.org/training-material/topics/assembly/tutorials/unicycler-assembly/tutorial.html)

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [April 18, 2026, 2:09am UTC](https://help.galaxyproject.org/t/how-to-analyze-the-quality-of-an-assembly-using-only-the-table-statstics-from-bandage-ingo/11992/4 "2026-04-18T02:09:32Z")

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