7Â¥: Originally posted by ÔÂÖ»À¶ at 2013-12-15 09:11:29
f(a,b,c)=p1+p2*ln(a/3+b/3+c/3)+p3/(a/3+b/3+c/3));
ʽÖУ¬
p1=              -532.920658380386
p2=              2376.8235508824
p3=              665.287941422274
ÄâºÏ½á¹ûÆÀ¼ÛϵÊý£º
Correlation Coef. (R): 1
R-Square: ...

function threeD_
clear all;clc
data=[200     50               1.044
500           250       1.12
1000   500        1.25];
x=data(:,1);y=data(:,2);z=data(:,3);
[X,Y,Z]=griddata(x,y,z,linspace(min(x),max(x),50)',linspace(min(y),max(y),50),'v4');%²åÖµ
figure,surf(X,Y,Z);shading interp,colorbar %ÈýάÇúÃæ

3Â¥: Originally posted by ÔÂÖ»À¶ at 2013-12-14 17:16:50
ÎÊÌâÒ»

function threeD_
clear all;clc
data=;
x=data(:,1);y=data(:,2);z=data(:,3);
=griddata(x,y,z,linspace(min(x),max(x),50)',linspace(min(y),max(y),50),'v4');%²åÖµ
figure,surf(X,Y,Z);shad ...