matlab 这句话怎么错了x=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16];y=[179 351 485 580 670 787 897 983 1183 1346 1417 1469 1558 1626 1676 1721];e=polyfit(x,y,2)m=polyval(e,x);E=sqrt(mean((m-y).^2));输出结果:e =-2.5361 148.9925 28.6857E=sqrt(
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![matlab 这句话怎么错了x=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16];y=[179 351 485 580 670 787 897 983 1183 1346 1417 1469 1558 1626 1676 1721];e=polyfit(x,y,2)m=polyval(e,x);E=sqrt(mean((m-y).^2));输出结果:e =-2.5361 148.9925 28.6857E=sqrt(](/uploads/image/z/10203152-32-2.jpg?t=matlab+%E8%BF%99%E5%8F%A5%E8%AF%9D%E6%80%8E%E4%B9%88%E9%94%99%E4%BA%86x%3D%5B1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16%5D%3By%3D%5B179+351+485+580+670+787+897+983+1183+1346+1417+1469+1558+1626+1676+1721%5D%3Be%3Dpolyfit%28x%2Cy%2C2%29m%3Dpolyval%28e%2Cx%29%3BE%3Dsqrt%28mean%28%28m-y%29.%5E2%29%29%EF%BC%9B%E8%BE%93%E5%87%BA%E7%BB%93%E6%9E%9C%3Ae+%3D-2.5361+148.9925+28.6857E%3Dsqrt%28)
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