EJEMPLO AJUSTE DE CURVAS - REGRESION POLINOMIAL
x y x^2 x^3 x^4 xy x^2y f(x)1 0.5 1 1 1 0.5 0.5 0.542 1.5 4 8 16 3 6 1.513 3.4 9 27 81 10.2 30.6 3.124 5 16 64 256 20 80 5.375 8.4 25 125 625 42 210 8.26
15 18.8 55 225 979 75.7 327.1
5 15 55 18.8 0.220000A = 15 55 225 C = 75.7 X = 0.001429
55 225 979 327.1 0.321429
f(x) = 0.22+0.00143x+.3214*x^2
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.50
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Regresión polinomial 2o orden
x
y
f(x)=0.22+0.0014x+0.3214x^2
r=0.997
(y-f(x))^2 (y-yprom)^20.00 10.62760.00 5.10760.08 0.12960.14 1.53760.02 21.52960.24 38.932
r^2 = 0.993923r = 0.996957
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.50
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Regresión polinomial 2o orden
x
y
f(x)=0.22+0.0014x+0.3214x^2
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