Mixed Models
Julia package for fitting statistical mixed-effects models.
- Status
- Generally available
- Last checked
- Checked · Oct 16, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
MixedModels.jl is a Julia package designed to fit statistical mixed-effects models. It provides tools for researchers and data scientists to analyze complex datasets with both fixed and random effects, enhancing the accuracy of predictive modeling in various fields.
MixedModels.jl stands out as a robust, open-source solution specifically tailored for fitting mixed-effects models in Julia, offering efficient algorithms and seamless integration with the broader Julia ecosystem.
When it fits — and when it doesn’t
A good fit for
Research teams working with complex datasets requiring mixed-effects models
Academics needing precise statistical analysis tools for publication-quality research
Look elsewhere if
Projects that require real-time data processing and model fitting
Users who prefer a graphical user interface over command-line or script-based interaction
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited language support due to Julia-specific implementation
MixedModels.jl is only available in Julia, which may limit its accessibility for developers proficient in other languages such as Python or R.
- 02
Small community and limited third-party integrations
The package relies on the smaller Julia ecosystem, which has fewer contributors and less extensive third-party support compared to more popular languages like Python or R.
- 03
Performance may degrade with very large datasets due to memory constraints in Julia
Julia's memory management can sometimes lead to performance bottlenecks when handling extremely large datasets, which could impact the efficiency of MixedModels.jl.
- 04
Documentation may be insufficient for beginners or those new to Julia
The documentation might not cover all use cases in detail, and the learning curve for both Julia and mixed-effects modeling can be steep for newcomers.
What it does well
Fits linear mixed-effects models
Supports generalized linear mixed models
Efficient algorithms for large datasets
Integration with Julia's ecosystem for data analysis
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Mixed Models
Setup steps, common gotchas and what to check after 30 days.
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