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RE: st: Axis rules made to be broken


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   RE: st: Axis rules made to be broken
Date   Thu, 15 May 2003 15:21:37 +0100

Constantine Daskalakis
 
> 1. Whether one plots on the original or the log or whatever 
> scale is NOT a 
> whim but is dictated by how the audience understands the 
> message. Plotting 
> percentages on a log scale is kind of bizarre -- there is 
> no intuitive 
> scientific reason for doing it (as opposed to plotting, 
> say, some assay 
> values on a log scale, which people normally analyze on the 
> log scale). 
> Almost everyone would be puzzled by it.

To every rule here, there is an exception. If the percentage 
was (% remaining of original) then looking at that on a log scale 
against time is often not only legitimate, but also very sensible. 
Think radioactive decay, etc., etc. 

I agree that I would not plot log of % using PCs. A logit 
scale, now... 

Nick 
[email protected] 

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