Hi all,

I have a multiple-linear regression problem.

There are 13 columns of data, the whole data matrix is:  n x 13, where n is
the number of samples.

Now I want to regress  EACH of the first 12 columns onto the 13th column,
with 2-parameter linear model  y_i = b0 + b1 * x_i, where i goes from 1 to
n, and b0 is the intercept.

How do I create a design matrix to do the 12-column regression collectively
all at once using multiple linear regressions?

Thanks a lot

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