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[ÇóÖú] matlab×îС¶þ³ËÌáʾ´íÎó£¬Çó´óÏÀ°ïæָµã

matlab×îС¶þ³ËÌáʾ´íÎóʹÓà lsqcurvefit (line 247) Function value and YDATA sizes are not equal.Çó´óÏÀ°ïæָµã
x =[770,850,860,960,990,1050,100,1060,1090,1090];
y =[0,0.3,0.7,1.0,1.3,1.7,2.0,2.3,0.7,3.0];
f=@(a, x) a(1)/ a(2)*( a(3)/(1700+ a(1)*(1- a(4))*850)*log((1700* a(4)+ a(1)*(1- a(4))*(x-770))/( a(4)* a(3)*850- a(3)*(x-770)))+1/( a(1)*(1- a(4)))*log(1700));
[xx,res]=lsqcurvefit(f,[1,1,1,1], x,y);
y1=f(a, x);
plot(x,y, x,y1,¡¯x¡¯)
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