i am new to matlab and i want to learn, can anyone help me with this please!!!!
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Anas Gharsa
on 22 Jan 2022
Commented: Anas Gharsa
on 23 Jan 2022
I want to compute and plot the regression polynomial of degree 2 for some datapoints and than I want to estimate the value of the function at the point x¯ = 2.5 by using the obtained regression polynomial of degree 2
3 Comments
John D'Errico
on 22 Jan 2022
Edited: John D'Errico
on 22 Jan 2022
Since this is surely a homework problem, what have you tried? Why not use polyfit? If you have no idea how to use that tool, and cannot read the help, then you need to read the manuals. Spend some time with the various tutorials. The point being, there are plenty of simple tutorials to be found, and what you are asking for is already written up in the help.
Accepted Answer
Image Analyst
on 22 Jan 2022
See my attached demo for polyfit. It will be easy for you to adapt it.
coefficients = polyfit(x, y, 2);
yFit = polyval(coefficients, 2.5);
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