[RC5] Long-term projects: exponential and logarithmic growth

Dave Huang khym at azeotrope.org
Mon Sep 6 17:05:32 EDT 2004


On Mon, Sep 06, 2004 at 04:05:35PM -0400, waldo kitty wrote:
> Daniel Quintiliani wrote:
> >A linear trendline produces:
> >
> >y = 3.0401x + 53.134
> >R^2 = 0.8519
> >89 years 1 month
> >
> >A logarithmic trendline produces:
> >
> >y = 43.762Ln(x) - 3.6719
> >R^2 = 0.8645
> >454 years 6 months
> >
> >They're both pretty close. 
> 
> pretty close to what?? sure looks like a huge difference in 89 years and 
> 454 years...

The fit is pretty close to the actual data points.
-- 
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