问题显示字符串

时间:2011-02-13 17:26:14

标签: arrays user-interface matlab matrix

嘿伙计。可以帮我这个吗?

if size(cost,1) == 2

       A = (4*Pdt*cost(1,3)*cost(2,3)) + 2*(cost(1,2)*cost(2,3))+(cost(1,3)*cost(2,2));
       B = 2*(cost(2,3)+cost(1,3));
       lambda = num2str(A ./ B);
       set(handles.answer1_staticText,'String', lambda);
       P1 = (lambda - cost(1,2))./(2*cost(1,3));
       P2 = (lambda - cost(2,2))./(2*cost(2,3));
       PT = mat2str(P1 + P2);
       set(handles.answer2_staticText,'String', PT);
       guidata(hObject, handles);
end

从上面的编码中,答案变成这样:

[11.75 11.25 11.25 11.75 10.75 11.5 12.75 12.75 13]

我的问题是我想在静态文本框中显示我的答案,如下所示:

P1 = (%answer for P1)

P2 = (%answer for P2)

P TOTAL = (%answer for PT)

任何人都可以帮我编码吗?

1 个答案:

答案 0 :(得分:0)

您已将lambda转换为字符串(使用num2str),因此P1等的计算会产生意外结果。

最好只在显示步骤中转换为字符串,这样就不会发生这些事故。

试试这个:

if size(cost,1) == 2

       A = (4*Pdt*cost(1,3)*cost(2,3)) + 2*(cost(1,2)*cost(2,3))+(cost(1,3)*cost(2,2));
       B = 2*(cost(2,3)+cost(1,3));
       lambda = A ./ B;
       set(handles.answer1_staticText,'String', num2str(lambda));
       P1 = (lambda - cost(1,2))./(2*cost(1,3));
       P2 = (lambda - cost(2,2))./(2*cost(2,3));
       PT = P1 + P2;
       set(handles.answer2_staticText,'String', num2str(PT));
       guidata(hObject, handles);
end