# Numerical Methods : Matlab Program for Linear Least Squares Analylsis

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A Matlab Program for Linear Least Squares Analylsis is provided. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

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Examples of linear least square fit and quadratic least square fit are written and explained in comments in the attached Matlab script.

The two examples are also plotted in two figures.

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function exampleLSQ()

% examples of linear and parabolic fits with randomly generated errors

% (noise)

np = 20 ; % number of points to use in the example

er = 4 ; % the amplitude of errors / noise

% randomly generated input for linear fit

intercept = 1 ; % assumed true intercept

slope = 2 ; ...

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