A dataset of 1744 profiles rescaled from SPECIATE and named according to one of 7 categories: oil, dust, diesel, wood, vehicle, coal, metals. Each profile (row) represents contributions from 23 chemical constituents of PM2.5. Each row sums to 1. The rownames can be made into a factor of labels for k nearest neighbors.
A data frame with 1744 rows and 23 variables
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