{
  "title": "Anscombe's quartet: fitted values and residuals",
  "description": "Fitted value and residual for each of the 44 points of Anscombe's quartet, one row per point: set, observation, x, y, the y predicted by that set's own least-squares line, and the residual (observed minus fitted), to four decimals. Computed from the values as distributed with R; the original 1973 publication was not consulted here. Retrieved 2026-10-31. License: the values are factual data; the R distribution is licensed GPL-2 | GPL-3. Table layout by Puzzles, Charts & Dilemmas, CC BY 4.0.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "Puzzles, Charts & Dilemmas",
  "page": "https://puzzleschartsanddilemmas.com/charts/anscombes-quartet/",
  "derived_from": [
    "R Core Team, R datasets package, object anscombe (data file src/library/datasets/, https://svn.r-project.org/R/trunk/src/library/datasets/",
    "Original publication (cited by the R documentation; not consulted here): Anscombe, F. J. (1973). Graphs in Statistical Analysis. The American Statistician 27(1): 17-21. doi:10.1080/00031305.1973.10478966",
    "The R documentation gives its source as Tufte, E. R. (1990), The Visual Display of Quantitative Information, pp. 13-14."
  ],
  "method": "Compiled by Puzzles, Charts & Dilemmas from the data listed",
  "data_credit": [
    "R Core Team, R datasets package, anscombe, values as distributed with R (GPL-2 | GPL-3); original publication Anscombe (1973), The American Statistician 27(1):17-21, not consulted here; source given by the R documentation: Tufte (1990), pp. 13-14, not consulted here"
  ]
}