no less than 0.so the larger value of it, the greater the amount of shrinkage.在对系数进行求解是，这个系数还使矩阵一定可逆。与y轴的截断系数变大，其他系数减小并趋向于0.
no less than 0.so the larger value of it, the greater the amount of shrinkage.在对系数进行求解是，这个系数还使矩阵一定可逆。与y轴的截断系数变大，其他系数减小并趋向于0.
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