{
  "id": "glass",
  "sourceUrl": "https://archive.ics.uci.edu/dataset/42/glass%2Bidentification",
  "archiveUrl": "https://archive.ics.uci.edu/static/public/42/glass%2Bidentification.zip",
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  "retrieved": "2026-09-08",
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    "magnesium",
    "aluminum",
    "silicon",
    "potassium",
    "calcium",
    "barium",
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  "name": "Glass Identification",
  "creator": "B. German (1987)",
  "doi": "10.24432/C5WW2P",
  "answer": "Explore all 214 rows of the UCI Glass Identification data. The chart pairs sodium content with refractive index, while the full CSV keeps the record identifier, nine measurements and glass class code.",
  "columnNotes": "The first column is a record identifier and the last a glass-type code. Sodium and the other elemental fields are reported as weight percent in the corresponding oxide; refractive index is a separate dimensionless measure. The repository lists class code 4 but notes that no observations of that class are present.",
  "interpretation": "The record identifier is retained for traceability and excluded from the scatter coordinates. Sodium supplies X and refractive index supplies Y. These different measures belong on separately labelled axes; they should not be summed as though they were parts of a common total. The chart retains unusual measurements rather than deleting them to produce a smoother cloud.",
  "limitation": "This historical dataset supports exploratory plotting and method practice. A scatter of two measurements is not a validated identification procedure or forensic conclusion. Class membership and the remaining measurements are available in the full CSV for more careful analysis, but no classifier is trained here.",
  "units": "X: sodium, weight percent in corresponding oxide. Y: refractive index, dimensionless.",
  "x": "Sodium (oxide weight %)",
  "y": "Refractive index",
  "url": "/datasets/glass/"
}