User documentation# Density Estimation Introduction Kernel density estimation Tools for working with Gaia data Introduction Gaia EDR3 tools RUWE tools MCMC tools Metropolis samplers Numerical tools Astronomy Integration Optimize Special Plotting utilities Introduction Plot styles Colour maps Distinct colour-blind friendly colours Plots of distributions Plotting tools for inference Posterior distributions from Bayesian data analysis Posterior on mean and variance for a normal distribution Simulation tools Star cluster simulations Initial mass function Parallax surveys Statistical tools Distributions Moments Robust statistics Robust rolling statistics Stellar model tools Input/output