PGFPlots is typically included by default in major LaTeX distributions like TeX Live or MiKTeX. If you find it is missing or you need a specific version, use the following methods:
PGFPlots is a powerful LaTeX package based on PGF/TikZ designed to create high-quality scientific and technical graphics. Unlike basic drawing tools, PGFPlots allows you to provide raw data or formulas while it handles the complex scaling, axis labeling, and styling automatically. How to Download and Install PGFPlots download pgfplots