matlab做求大神帮做下四元线性拟合数据为x1=[871.1,912.37,954.28,995.01,1037.20,1046.74];x2=[12413,13568,13635,17230,18003,18311];x3=[27465059,33780554,39180316,43675520,50516743,61556537];x4=[816526,525399,1242672,1630
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P = regress(y',[x1',x2',x3',x4']) %需要常数项就在最后加一个ones(size(x4'))