Regarding nonlinear and multivariable regression, I am using R or Matlab. In the case where I have a regression with just two variables, I simply draw the graph Y with respect to X and look for the equation of the model that corresponds the most to the distribution of the point cloud.

However, in the case where Y is connected with several independent variables (in my case 12 variables $X_1, X_2,...,X_{12}$). How will I be able to define the equation of the regression model?


This question clearly is the basics of linear regression.

If you are looking for a way to implement linear regression in R, use the lm method.

fit <- lm(y~X1+X2, data = datasetname)


This should give the coefficients and the p value for each variable.

  • $\begingroup$ But the title is clear, the question is about nonlinear regression. $\endgroup$
    – samben
    Aug 2 '18 at 10:33
  • $\begingroup$ I apologize. that is not the solution for your question. consider taking interactive terms. $\endgroup$
    – NAGA
    Aug 2 '18 at 19:30

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