关于matlab数据拟合曲线的问题,程序出错!t=[0 .3 .8 1.1 1.6 2.3]';y=[.82 .72 .63 .60 .55 .50]';plot(T,Y,'-');E=[ones(size(t)) exp(-t)];c=E\yT=(0:0.1:2.5)';Y=[ones(size(T)) exp(-T)]*c;hold on;plot(T,Y,'-',t,y,'o')结果却是? Undefined fu
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![关于matlab数据拟合曲线的问题,程序出错!t=[0 .3 .8 1.1 1.6 2.3]';y=[.82 .72 .63 .60 .55 .50]';plot(T,Y,'-');E=[ones(size(t)) exp(-t)];c=E\yT=(0:0.1:2.5)';Y=[ones(size(T)) exp(-T)]*c;hold on;plot(T,Y,'-',t,y,'o')结果却是? Undefined fu](/uploads/image/z/6108848-8-8.jpg?t=%E5%85%B3%E4%BA%8Ematlab%E6%95%B0%E6%8D%AE%E6%8B%9F%E5%90%88%E6%9B%B2%E7%BA%BF%E7%9A%84%E9%97%AE%E9%A2%98%2C%E7%A8%8B%E5%BA%8F%E5%87%BA%E9%94%99%21t%3D%5B0+.3+.8+1.1+1.6+2.3%5D%27%3By%3D%5B.82+.72+.63+.60+.55+.50%5D%27%3Bplot%28T%2CY%2C%27-%27%29%3BE%3D%5Bones%28size%28t%29%29+exp%28-t%29%5D%3Bc%3DE%5CyT%3D%280%3A0.1%3A2.5%29%27%3BY%3D%5Bones%28size%28T%29%29+exp%28-T%29%5D%2Ac%3Bhold+on%3Bplot%28T%2CY%2C%27-%27%2Ct%2Cy%2C%27o%27%29%E7%BB%93%E6%9E%9C%E5%8D%B4%E6%98%AF%3F+Undefined+fu)
关于matlab数据拟合曲线的问题,程序出错!t=[0 .3 .8 1.1 1.6 2.3]';y=[.82 .72 .63 .60 .55 .50]';plot(T,Y,'-');E=[ones(size(t)) exp(-t)];c=E\yT=(0:0.1:2.5)';Y=[ones(size(T)) exp(-T)]*c;hold on;plot(T,Y,'-',t,y,'o')结果却是? Undefined fu
关于matlab数据拟合曲线的问题,程序出错!
t=[0 .3 .8 1.1 1.6 2.3]';y=[.82 .72 .63 .60 .55 .50]';plot(T,Y,'-');E=[ones(size(t)) exp(-t)];c=E\yT=(0:0.1:2.5)';Y=[ones(size(T)) exp(-T)]*c;hold on;plot(T,Y,'-',t,y,'o')结果却是? Undefined function or variable 'T'.我是初学者,靠着耐心弄了一下午.也没弄出来,烦请哪位路过的大大指点一下!谢谢了~
t=[0 .3 .8 1.1 1.6 2.3]';
y=[.82 .72 .63 .60 .55 .50]';
plot(T,Y,'-');
E=[ones(size(t)) exp(-t)];
c=E\y
T=(0:0.1:2.5)';
Y=[ones(size(T)) exp(-T)]*c;
hold on;plot(T,Y,'-',t,y,'o')
这是书上例题的原样~
关于matlab数据拟合曲线的问题,程序出错!t=[0 .3 .8 1.1 1.6 2.3]';y=[.82 .72 .63 .60 .55 .50]';plot(T,Y,'-');E=[ones(size(t)) exp(-t)];c=E\yT=(0:0.1:2.5)';Y=[ones(size(T)) exp(-T)]*c;hold on;plot(T,Y,'-',t,y,'o')结果却是? Undefined fu
Undefined function or variable 'T'.
未定义变量T
matlab是顺序运行的,
你在运行plot(T,Y,'-');这个指令之前还没有T的定义呢.T=(0:0.1:2.5)'却在后面.这个程序是你自己写的吗?怎么结构这么混乱.