I want to add a line of best fit to my plot using the polyfit function.

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Norman Vyne
Norman Vyne 2019-8-15
评论： Jon 2019-8-16
%Plot graph 1
figure(2); clf
plot(xL(A),anglex,'ko');

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Jon
Jon 2019-8-15
编辑：Jon 2019-8-15
You can do something like this
p = polyfit(xL(A),anglex,1);
anglexFit = polyval(p,xL(A));
plot(xL(A),anglex,'ko',xL(A),anglexFit)
I'm assuming your variable A, is a vector of indices that give the elements of xL that you want plotted and fit.
Also you can enter the command doc polyfit on the command line and it will bring up the documentation for polyfit, which has some nice examples of plotting best fit lines.

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Image Analyst
Image Analyst 2019-8-16
See attached demo of polyfit where I fit a line and a dubic to some data.
Attach your data and show a screenshot of it plotted if you want anymore help.

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