🚧 Work in Progress! 🚧

⚠️ CosmoSynth is still a work in progress!
It’s not mature or intended to be production-ready. Expect significant changes—many of which are happening outside this repo!

🚀 Why CosmoSynth?

CosmoSynth is more than just a library—it's an idea: making it easy and Pythonic to build flexible yet powerful models.

There are already well-established, battle-tested libraries for modeling and fitting, such as Astropy and LmFit, both of which greatly inspire CosmoSynth. However, they have some limitations:

• Astropy doesn’t natively support fitting custom models with MCMC libraries like emcee.
• LmFit does, but it often introduces computational overhead, sacrificing performance.

CosmoSynth aims to bridge the gap, combining the best of both worlds: an intuitive interface without compromising efficiency.

✅ What You Can Do

Here’s what CosmoSynth supports right now:

• 🔧 Define models from user-defined functions.
• 🔗 Combine models using various operations.
• 🎯 Add or remove constraints of different types on individual model parameters.
• 🔒 Fix parameters when needed.
• 📊 Fit models to observational data with a direct interface and multiple optimization methods.