# "Edward Wegman" returned 4 hits

**Wegman**portrait,

**Wegman**1990 - Fig3.,

**Wegman**1990 - Fig8

1

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

2

Esthetics and information integrity for graphics defined and illustrated (some concepts: "data-ink ratio'', "lie factor'')

Mediaitems:
Tufte portrait, Graphics and web design according to Tufte's principles

Category:
Statistics & Graphics

3

Statistical theory and methods for parallel coordinates plots

Mediaitems:
**Wegman** portrait, **Wegman** 1990 - Fig3., **Wegman** 1990 - Fig8

Category:
Statistics & Graphics

4

Sparklines: "data-intense, design-simple, word-sized graphics,'' designed to show graphic information inline with text and tables

Mediaitems:
Sparkline of the US deficit, 1983--2003, Sparkline graphic for 4 stocks, Tufte's explanation of sparklines, Sparkline entry from Wikipedia

Category:
Statistics & Graphics