1stopt的拟合问题
在1stopt软件中,将测得一组数据(即不同温度下药物的溶解度)利用公式y=a/(a-1+exp(a*b*(1/x-1/398.15)))进行拟合是可以的,但是怎样对多组测得数据在同一个图中进行线性拟合呢?如图结果:
附带两组数据,x y;希望能给出软件操作的详细过程,谢谢了
298 0.03937
303 0.00826
308 0.01085
313 0.01718
318 0.0235
323 0.0339
328 0.04308
298 0.00728
303 0.054
308 0.06354
313 0.0778
318 0.09858
323 0.1101
328 0.1353

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Title "多方程拟合";
Parameters a1,b1,a2,b2,a3,d3,a4,b4,a5,b5,a6,b6;
Variables x,y1,y2,y3,y4,y5,y6;
SharedModel;
Function y1=a1/(a1-1+exp(a1*b1*(1/x-1/398.15)));
y2=a2/(a2-1+exp(a2*b2*(1/x-1/398.15)));
y3=a3/(a3-1+exp(a3*b3*(1/x-1/398.15)));
y4=a4/(a4-1+exp(a4*b4*(1/x-1/398.15)));
y5=a5/(a5-1+exp(a5*b5*(1/x-1/398.15)));
y6=a6/(a6-1+exp(a6*b6*(1/x-1/398.15)));
data;
//x y1 y2 y3 y4 y5 y6
298 0.03937 0.00728 ... ... ... ...
303 0.00826 0.05400 ... ... ... ...
308 0.01085 0.06354 ... ... ... ...
313 0.01718 0.07780 ... ... ... ...
318 0.02350 0.09858 ... ... ... ...
323 0.03390 0.11010 ... ... ... ...
328 0.04308 0.13530 ... ... ... ,