# Morris Screening Method reduces the number of parameters

**URL:** https://discourse.julialang.org/t/morris-screening-method-reduces-the-number-of-parameters/130258
**Category:** Modelling & Simulations
**Tags:** package, globalsensitivityjl
**Created:** [June 26, 2025, 8:42pm UTC](https://discourse.julialang.org/t/morris-screening-method-reduces-the-number-of-parameters/130258 "2025-06-26T20:42:28Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![AlirezaMiraliakbar](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alirezamiraliakbar/32/217477_2.png) [@AlirezaMiraliakbar](https://discourse.julialang.org/u/AlirezaMiraliakbar)
#### Post date: [June 26, 2025, 8:42pm UTC](https://discourse.julialang.org/t/morris-screening-method-reduces-the-number-of-parameters/130258/1 "2025-06-26T20:42:28Z")

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Hello Everyone,

I am new to `GlobalSensitivity.jl`. I am trying to find the most sensitive parameters in my large ODE system which has 37 parameters. I gave all parameter ranges and set `p_steps` 10 for all parameters in a vector as requried. However, once Morris screening method is done, it only shows has results for 36 of them, and I am not sure which one is excluded.

How did this happen? I would appreciate it if you could help figure it out.

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### Author: ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [June 27, 2025, 11:09am UTC](https://discourse.julialang.org/t/morris-screening-method-reduces-the-number-of-parameters/130258/2 "2025-06-27T11:09:22Z")

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Can you open an issue?