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Al Ka

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Comments and Ratings by Al Ka View all
Updated File Comments Rating
07 May 2011 Viewer3D MIP, Color, Slice and Shaded 3D (shearwarp) Volume Rendering, interactive 3D view/measurement GUI Author: Dirk-Jan Kroon

Is there a copyright disclaimer? Can it be used for research purposes?

12 Jan 2011 EzyFit 2.42 A free curve fitting toolbox for Matlab Author: Frederic Moisy

Very good plugin but I have a serious problem with evalfit(). I have the following code:

x = [1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749];
x= x';

y = 1.0e+03 * [1.0408 1.0392 1.0376 1.0362 1.0348 1.0335 1.0323 1.0312 1.0302 1.0293 1.0285 1.0278 1.0271 1.0266 1.0261 1.0258 1.0255];
y=y';

f = ezfit(x,y,'y=20-a*10*log(x)');

figure; plot(f.x,f.y, 'b-');
figure; plot(x,evalfit(f,x),'r-');

If you run it you will see that the two plots are way off while they should be almost identical. I guess. Please let me know what I am doing wrong.

I want to use evalfit to extrapolate some data. Thank you in advance!

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