[英]Im trying to fit a multivariate non-linear regression model
I want to ask for your help to model a multivariate non-liear model of the form: y=b1*x1^b2 + b3*x2 + b4*x3. 我想请您帮助建模以下形式的多元非线性模型:y = b1 * x1 ^ b2 + b3 * x2 + b4 * x3。 Previously I used the next form for a single independent variable non-linear model.
以前,我将下一种形式用于单个自变量非线性模型。 But now with an X array with multiple independent variables I dont know hoe to proceed.
但是现在有了带有多个自变量的X数组,我不知道该如何进行。
def expon(x, Beta_1, Beta_2):
y = Beta_1*np.exp(Beta_2*x)
return y
from scipy.optimize import curve_fit
popt, pcov = curve_fit(sigmoid, xdata, ydata )
print(" beta_1 = %f, beta_2 = %f" % (popt[0], popt[1]))
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