"Walter C. Eells" returned 14 hits

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1
Author: Claudius Ptolemy (c.85-c.165)
Map projections of a spherical earth and use of latitude and longitude to characterize position (first display of longitude)
Mediaitems: Ptolemy's world map, republished in 1482, Ptolemy portrait , Ptolemy world map description, with images, Ptolemy's world map, description and high-res image, Ptolemy history, The world according to Ptolemy
Category: Cartography
2
Author: John Napier (1550-1617)
Invention of logarithms, and the first published tables of logarithms.
Mediaitems: Two pages from Napier's table of logarithms, Diagram of spherical triangles from, Napier portrait, Biography of Napier, Linear and logarithmic scales, English translation of John Napier : Mirifici Logarithmorum Canonis Descriptio...by Ian Bruce
Category: Statistics & Graphics
3
Author: Joseph Priestley (1733-1804)
Historical timeline (life spans of 2,000 famous people, 1200 B.C. to 1750 A.D.), quantitative comparison by means of bars
Mediaitems: Priestley's specimen chart of biography, Priestley biography, Priestley portrait
Category: Cartography
4
Author: Charles de Fourcroy (1766-c.1810)
Use of geometric, proportional figures (squares) to compare demographic quantities by superposition, an early "tableau graphique''
Mediaitems: de Fourcroy's proportional squares, de Fourcroy's proportional squares, Description of de Fourcroy, from Palsky
Category: Statistics & Graphics
5
Authors: Pierre-Fran├žois Verhulst (1804-1849)
Development of the logistic curve, $ y = k / (1 + C e^)$, to describe the growth of human populations
Mediaitems: Verhulst bio, Pierre-Francois Verhulst et la loi logistique de la population, Verhulst portrait
Category: Statistics & Graphics
6
Author: Edward Walter Maunder (1851-1928)
Use of the "butterfly diagram'' to study the variation of sunspots over time, leading to the discovery that they were markedly reduced in frequency from 1645--1715 (the "Maunder minimum''). [Earlier work, started in 1843 by H. Schwabe, showed that sunspots exhibit an approximately twenty-two year cycle, with each eleven-year cycle of sunspots followed by a reversal of the direction of the sun's magnetic field]
Mediaitems: Maunder's butterfly diagram, The sunspot cycle, The butterfly diagram, 1904 Butterfly Diagram: Sunspots
Category: Statistics & Graphics
7
Authors: Karl G. Karsten & A. C. Haskell & A. R. Palmer
Numerous textbooks on graphics, describing principles of graphical presentation of numerical information (published at a rate of about two each year), e.g.,
Category: Statistics & Graphics
8
Author: Walter A. Shewhart (1891-1967)
Development of the control chart for statistical control of industrial processes
Mediaitems: Collection of web sites on Shewhart, Walter Shewhart portrait
Category: Statistics & Graphics
9
Author: Walter C. Eells
Experimental test of statistical graphical forms (pie vs. subdivided bar charts)
Mediaitem: Experimental stimuli
Category: Statistics & Graphics
10
Authors: D. H. Leavens & F. C. Martin
"Log Square'' paper ($log y, log x$, for relations which are linear in log scales)
Category: Technology
11
Author: Henry C. Beck (1902-1974)
Re-design of the routes of the London underground rail system to favor usability
Mediaitems: Modern London tube map following Beck, Beck's initial underground map, Beck portrait, Wikipedia on Henry (Harry) Beck, Catalog of London Underground maps 1933-
Category: Cartography
12
Authors: R. M. Goldwyn (1936-1994) & J. H. Siegel & Herman P. Friedman (c. 1930-2010)
Irregular polygon ("star plot'') to represent multivariate data (with vertices at equally spaced intervals, distance from center proportional to the value of a variable) [but see Georg von Mayr in 1877 cite[S. 78]{vonMayr:1877} for first use]
Mediaitems: Star plot, description and example, Star plot of crime rates in US cities
Category: Statistics & Graphics
13
Author: Andrew S. C. Ehrenberg (1926-2010)
Experimental tests of statistical graphics vs tables, findings favoring latter
Mediaitems: Summarising and presenting data- Rules for tables, Ehrenberg portrait
Category: Statistics & Graphics
14
Author: George W. Furnas
Fisheye view: an idea to provide focus and greater detail in areas of interest of a large amount of information, while retaining the surrounding context in much less detail
Mediaitems: Fisheye view of central Washington, D.C., Nonlinear magnification home page, Fisheye view of central Washington, D.C., Fisheye view of central Washington, D.C., Furnas home page, Generalised fisheye views paper (pdf)
Category: Other