# Performing Global Sensitivity Analysis on a big reaction network imported as a SBML file

**URL:** <https://discourse.julialang.org/t/performing-global-sensitivity-analysis-on-a-big-reaction-network-imported-as-a-sbml-file/93000>\
**Category:** Modelling & Simulations\
**Created:** [January 15, 2023, 8:31pm UTC](https://discourse.julialang.org/t/performing-global-sensitivity-analysis-on-a-big-reaction-network-imported-as-a-sbml-file/93000 "2023-01-15T20:31:25Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![Nick1](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Nick1](https://discourse.julialang.org/u/Nick1)\
**Post date:** [January 23, 2023, 8:21pm UTC](https://discourse.julialang.org/t/performing-global-sensitivity-analysis-on-a-big-reaction-network-imported-as-a-sbml-file/93000/21 "2023-01-23T20:21:19Z")

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@isaacsas I checked it and it does not solve the issue. I just followed up in the slack channel.

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**Author:** ![paulflang](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/paulflang/32/11469_2.png) [@paulflang](https://discourse.julialang.org/u/paulflang)\
**Post date:** [January 23, 2023, 9:22pm UTC](https://discourse.julialang.org/t/performing-global-sensitivity-analysis-on-a-big-reaction-network-imported-as-a-sbml-file/93000/22 "2023-01-23T21:22:06Z")

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Looks like the issue here is that BNG does not export `initialAssigments` but plugs in the numeric values.

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