MAKE A MEME View Large Image Linear least squares.svg Illustration of linear least squares self-made with MATLAB tweaked in Inkscape 19 15 2 February 2008 UTC Oleg Alexandrov Created with MATLAB Source code MATLAB <source lang matlab > Illustration of linear least ...
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Keywords: Linear least squares.svg Illustration of linear least squares self-made with MATLAB tweaked in Inkscape 19 15 2 February 2008 UTC Oleg Alexandrov Created with MATLAB Source code MATLAB <source lang matlab > Illustration of linear least squares function main KSmrq's colors red 0 867 0 06 0 14; blue 0 129 205/256; green 0 200 70/256; yellow 254 194 0/256; white 0 99 1 1 1; gray 0 2 white; Set up the grid and other parameters N 100; A -2 2; B 2; X linspace A B N ; C -4; D 4; Set up the figure lw 4; linewidth fs 18; font size figure 1 ; clf; hold on; set gca 'fontsize' fs ; set gca 'linewidth' lw/2 5 hold on; grid on; random numbers a 1 1; b 3 5; c 1 4; M 50; XX linspace A+0 3 B-0 3 M+1 ; Xr 0 1 M ; Yr Xr; for i 1 M r rand 1 ; Xr i XX i r+XX i+1 1-r ; Yr i a Xr i + b + c 0 4 erfinv 2 rand 1 - 1 ; end myrad 0 05; for i 1 length Xr ball Xr i Yr i myrad red ; end least squares fitting Yr Yr'; Mat Xr' 0 Xr+1 '; V Mat' Yr; V Mat' Mat \V; ae V 1 ; be V 2 ; plot X ae X+be 'b' 'linewidth' lw ; grid on; set gca 'GridLineStyle' '-' 'xcolor' gray ; set gca 'GridLineStyle' '-' 'ycolor' gray ; set gca 'XTick' -2 -1 0 1 2 ; axis equal; axis -2 2 1 6 ; saveas gcf 'Linear_least_squares eps' 'psc2' ; save as eps plot2svg 'Linear_least_squares svg' ; save as svg function ball x y r color Theta 0 0 1 2 pi; X r cos Theta +x; Y r sin Theta +y; H fill X Y color ; set H 'EdgeColor' 'none' ; </source> en wikipedia Linear_regression it wikipedia Minimi_Quadrati Control theory linear regression Images with Matlab source code
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