Graphical Data Displays and Interpretation

1
Wednesday, October 9
Graphical Data Displays and Interpretation
2
Wednesday, October 9
Graphical Data Displays and Interpretation
3
Graphical Data Displays and Interpretation
4
John Tukey, Exploratory Data Analysis. Edward
Tufte, The Visual Display of Quantitative
Information. Statistical Program SYSTAT
5
Tufte Principles of Graphical Excellence Graphica
l excellence is the well-designed presentation of
interesting data -- a matter of substance, of
statistics, and of design. Graphical excellence
consists of complex ideas communicated with
clarity, precision, and efficiency. Graphical
excellence is that which gives to the viewer the
greatest number of ideas in the shortest time
with the least ink in the smallest
space. Graphical excellence is nearly always
multivariate. Graphical excellence requires
telling the truth about the data.
6
(No Transcript)
7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
Johnson Newport (1989) Critical period effects
in second-language learning The influence of
maturational state on the acquisition of English
as a second language. Cognitive Psychology, 21,
60-99.
r-.87
r-.16
18
Johnson Newport, combined across age groups.
19
Johnson Newport, scaled properly.
r-.87
r-.49
20
(No Transcript)
21
Source New York Times, October 9, 2002, p. A24
(National Edition) Geographic Profiling One
Example in Canada.