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Subject: Trend Line / Curve
Date: Thu, 5 Nov 2009 16:57:02 +0000 (UTC)
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Is it possible to find the trend curve ? 

E.g. when we do   plot (x,y)

then in basic fitting we can do the fitting (trend line) for Linear and Polynomial (curbic.. etc) but I could not find any GUI where I could fit an exponential or logarithmic curve.

In MS Excel, I see such an option and in Excel it gives the value of R-square as well.