设计设计矩阵
我最近开始学习数据科学，无法掌握设计矩阵。
如果我有 x1 = 1,2,3,4，.... = 5,6,7,8 .... n 和目标 t = 9,8,7,6，.... n 和方程 y =
I have recently started learning Data Science and I am unable to get grasp of design matrices.
How would I create a design matrix (X) if I have x1 =1,2,3,4,....n , x2 =5,6,7,8....n and target T =9,8,7,6,....n and equation y= ????1 + ????2????1 + ????3????2 + ????4????12 + ????5x2x2* . I randomly selected x1,x2 and T values . Now how do I create a design matrix (X) from the equation and observations given above ?
I know X is created from x1 and x2 following the equation y but I could not figure out how to do that .
Any help is appreciated . Thank you .
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您的方程式仅使用回归系数1。生成的设计矩阵具有形状：
Your equation is using just regression coefficients for polynom 1. and 2. degree and interaction. The resulting design matrix has a shape: