Re: [R] Interaction plots as lines or bars?

2009-05-28 Thread Dieter Menne



Michael Kubovy wrote:
 
 An editor has suggested that I use bar plots to capture an interaction  
 of two 2-level factors and an interaction of a 2 by 3 factorial  
 experiment. (It would seem that there's a fear that someone might try  
 to interpolate between, e.g., 'male' and 'female'.) In general it  
 seems to me that an interaction plot with lines is easier to read, and  
 not likely to mislead. Does anyone know if and where this has been  
 discussed?
 

Editors are paid by the ink. 

I have never seen anything else than lines for such a plot. However, I once
was successful in using somewhat wider lines that looked barish. Which made
me believe that the paid by the ink is not too bad an analogy: editors
fear graphics that look too empty, so give them their black.  I am sure
Hadley will argue that this is the reason why ggplot2 by default has a gray
background.

Dieter


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[R] Interaction plots as lines or bars?

2009-05-27 Thread Michael Kubovy

Dear r-helpers,

An editor has suggested that I use bar plots to capture an interaction  
of two 2-level factors and an interaction of a 2 by 3 factorial  
experiment. (It would seem that there's a fear that someone might try  
to interpolate between, e.g., 'male' and 'female'.) In general it  
seems to me that an interaction plot with lines is easier to read, and  
not likely to mislead. Does anyone know if and where this has been  
discussed?



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Professor Michael Kubovy
University of Virginia
Department of Psychology
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Lab:B019+1-434-982-4751
Fax:+1-434-982-4766
WWW:http://www.people.virginia.edu/~mk9y/

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