"William Playfair" returned 12 hits
1
Invention of a mechanical device, containing a logarithmic scale of equal parts and trigonomic functions which, with the aid of a pair of calipers, could be used as a slide rule. This device, called "Gunter's scale,'' or the "gunter'' by seamen, was soon replaced by a true slide rule, containing two parallel logarithmic scales
Mediaitems:
Gunter's scale image, Gunter's log scale, Oughtred's dual log scale, Edmund Gunter - Biographical sketch, Edmund Gunter - Biography, William Oughtred - Biography
Category:
Technology
2
The first large scale attempt at a scientific, economic survey (of the Irish estates confiscated by Oliver Cromwell), perhaps the first econometric study, leading to development of political arithmetic
Mediaitems:
Map of William Petty's Down Survey, William Petty portrait, Petty - Biographical profile, with links to works and resources, Political Arithmetick, by Sir William Petty
Category:
Cartography
3
Use of statistics for international comparisons, e.g., London vs. Rome and London vs. Paris, compared in people, housing, hospitals, etc.
Mediaitem:
Petty portrait
Category:
Statistics & Graphics
4
Bar chart, line graphs of economic data
Mediaitems:
Playfair line graph: chart of national debt, Playfair bar/line chart: price of wheat and wages, Playfair line graph: chart of national debt, Playfair bar/line chart: price of wheat and wages
Category:
Statistics & Graphics
5
Invention of the pie chart, and circle graph, used to show part-whole relations
Mediaitems:
Playfair's 1805 Statistical Representation of the U.S.A., Playfair's 1805 Statistical Representation of the U.S.A., Playfair's diagram of population and taxes, Oxford DNB article by Ian Spence (pdf)
Category:
Statistics & Graphics
6
The first large-scale geological map of England and Wales, setting the pattern for geological cartography, and founding stratigraphic geology. Recently called (hyperbolically) "the map that changed the world'' cite{Winchester:2001}. (Smith's map was first drawn in 1801, but the final version was not published until 1815.)
Mediaitems:
Smith's map, in zoomable sections, Smith's 1815 map, William Smith portrait, Transcript of pages from Smith's 1816--1824 Strata Identified By Organized Fossils, William Smith (1769-1839), "The Father of English Geology'', William Smith, from "The Rocky Road to Modern Paleontology and Biology'', William Smith, history, William "Strata'' Smith on the Web
Category:
Cartography
7
Polar area charts, known as "coxcombs'' (used in a campaign to improve sanitary conditions of army)
Mediaitems:
re-creation of a coxcomb, Nightingale coxcomb, Nightingale portrait, JSE article: A Dialogue with Florence Nightingale, Florence Nightingale's Statistical Diagrams, Florence Nightingale by I. Bernard Cohen, Coxcomb of Cholera deaths by William Farr, Coxcomb of London Plague by William Farr, Graphs by Andre-Michel Guerry in 1829
Category:
Statistics & Graphics
8
Semilogarithmic grid (showing percentage changes in commodities)
Mediaitems:
Graphical method, from, Quantitative induction, from, Jevons portrait, Comprehensive bibliography, Jevons Home page, by Bert Mosselmans, Jevons in Sidney and the logic piano, The first semilog chart
Category:
Statistics & Graphics
9
Published instructions on how to use graph paper
Mediaitem:
Biography
Category:
Technology
10
The "Phillips Curve,'' a scatterplot of inflation vs. unemployment over time shows a strong inverse relation, leading to important developments in macroeconomic theory
Mediaitems:
The Phillips Curve, The Phillips Curve, Phillips biography
Category:
Statistics & Graphics
11
Enhancement of scatterplot with plots of three moving statistics (midmean and lower and upper semimidmean)
Mediaitems:
USA 1970 Draft Lottery Data, with median and quartile traces, Cleveland portrait, Cleveland bio and papers
Category:
Statistics & Graphics
12
Interactive statistical graphics, systematized: allowing brushing, linking, other forms of interaction
Mediaitems:
Figure 14 from "Brushing scatterplots'' showing interactive labeling of brushed points, ASA Video Library blurb for video "Dynamic Displays of Data'', Becker bio and portrait
Category:
Statistics & Graphics
