Re: Ratio as a response variable



On Thu, 09 Aug 2007 10:16:21 -0700, Greg Heath
<heath@xxxxxxxxxxxxxxxx> wrote:

On Aug 9, 11:47 am, jonesor <owen.jo...@xxxxxxxxxxxxxx> wrote:
Hi,

Can someone please outline what the problems are with using a ratio as a response variable in a regression model.

I know there are problems with using a ratio who's denominator is also an explanatory variable but what are the issues if the denominator is NOT among the explanatory variables?


I assume you mean that the ratio is "on the left" in the regression.
But the LHS variable is always a ratio, even if it's only y/1.

So what are your other restrictions? For example, is the ratio
constrained to be between 0 and 1?
-*** Startz
.


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