July 16, 2026•1 min read•from Towards Data Science

Why Your Betas Explode: The Hidden Geometry of Multicollinearity

Why your regression coefficients keep changing, and what geometry has to do with it.

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#multicollinearity

#regression coefficients

#betas

#geometry

#statistical modeling

#data science

#variable correlation

#linear regression

#coefficient instability

#model sensitivity

#design matrix

#variance inflation

#parameter estimation

#statistical analysis

#exploding coefficients

#towards data science

#numerical instability

#model diagnostics

#feature engineering

#correlation