# DiffEqParamEstim.jl - Generalized Likelihood Inference

**URL:** <https://discourse.julialang.org/t/diffeqparamestim-jl-generalized-likelihood-inference/85709>\
**Category:** Modelling & Simulations\
**Tags:** optimization\
**Created:** [August 13, 2022, 5:06pm UTC](https://discourse.julialang.org/t/diffeqparamestim-jl-generalized-likelihood-inference/85709 "2022-08-13T17:06:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![xztt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xztt/32/33843_2.png) [@xztt](https://discourse.julialang.org/u/xztt)\
**Post date:** [August 13, 2022, 5:06pm UTC](https://discourse.julialang.org/t/diffeqparamestim-jl-generalized-likelihood-inference/85709/1 "2022-08-13T17:06:01Z")

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Hi,

I am looking to implement the method that is found [here](https://diffeqparamestim.sciml.ai/dev/tutorials/generalized_likelihood/) I can follow the method well but I can not for the life of me see a way in which I could extend this to a problem to a situation where we have got n\>2 parameters.

Would there be a way to recreate the example in the docs without having to fix some parameters so we only have to perform analysis on 2 of them?

Also, I am aware when plotting the likelihood landscape we probably would struggle to go above 2D, however if anyone knows where I could find out to do that in 3D that would be cool. But I do believe would would struggle when hit a 4D parameter space 😜

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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:** [August 14, 2022, 12:31am UTC](https://discourse.julialang.org/t/diffeqparamestim-jl-generalized-likelihood-inference/85709/2 "2022-08-14T00:31:44Z")

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I don’t get the question. The parameters are just in an array so n=2 is the same as 3 or 4. Could you describe a little what your issue is? The fitting process doesn’t require making plots, those are just there as a demonstration.

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<div class="post-metadata">

**Author:** ![xztt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xztt/32/33843_2.png) [@xztt](https://discourse.julialang.org/u/xztt)\
**Post date:** [August 15, 2022, 5:39pm UTC](https://discourse.julialang.org/t/diffeqparamestim-jl-generalized-likelihood-inference/85709/3 "2022-08-15T17:39:10Z")

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Sorry i think I worded it completely wrong I am going to open a new thread with a hopefully better worded question