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Programming Tips

Strengthen your programming skills with tips and techniques from the experts

Artificial Intelligence | Programming Tips

Susan KahlerJuly 23, 2026 0

The three components you need to use agentic AI with SAS

Learn how SAS 9 programmers can use agentic AI tools such as Claude Code and ChatGPT Codex with SASPy to automate code generation, execution, testing, and debugging while maintaining human oversight, validation, and ownership of results.

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Analytics | Programming Tips

Rick WicklinJuly 20, 2026 0

The log-KDE method: Density estimates for positive data

A previous article discusses the problem of fitting a kernel density estimate (KDE) to data that are strictly positive. If you use a standard KDE, the resulting density curve might estimate non-zero probability for negative values. This is unsatisfactory because quantities like lengths and mass cannot be negative. The previous

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Analytics | Learn SAS | Programming Tips

Rick WicklinJuly 13, 2026 0

Kernel density estimates for positive data

The kernel density estimate (KDE) is a powerful tool for estimating the density of univariate data. The KDE is a flexible model. For example, it can fit data distributions that are multimodal or have long tails. It is nonparametric, which means that you do not need to assume any form

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