Parts of a whole

Parts that add up to a total, or factors that multiply to one. The forms here show each part's share.

Studied from its original page 9

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  Area-proportional nested population square with external companion

  Francis A. Walker · 1874

  Each place's population as a square whose area is its size, cut into its parts, with a separate bar for those born there who live elsewhere.

• Three-variable rectangle glyph

  Jacques Bertillon, Service de la Statistique Municipale de Paris · 1891

• Balance (counter-poise) chart

  Irving Fisher; two-factor elaboration by Karsten 1923 · 1911

• Factorial 100% triangle

  Karl G. Karsten (proposed: 'apparently never been used', p. 593) · 1923

• Sky-line chart

  Karsten (naming); American statistical practice · 1923

• IBM Cosmograph

  International Business Machines · by 1939

• Nested-zone dot circles

  Travelers Insurance Co., Hartford · by 1939

• Piper trilinear diagram

  Arthur M. Piper · 1944

• Stiff diagram

  H.A. Stiff Jr. · 1951