Iris: the classic classification dataset

Posted 15 Oct 2026

150 flowers from three iris species, each measured on sepal and petal length and width. Small and clean, it is a standard first example for classification, clustering and plotting.

MaintainerUCI Machine Learning Repository
LicenseCC BY 4.0
FormatCSV-style .data

Official page: archive.ics.uci.edu/dataset/53/iris

SolxLab links to the official source and does not re-host this dataset. Follow the license and terms on the official page.

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