Why my subplot command skipping the first graph's title and labels?

Question

Mr. 206 2019-1-11

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/439362-why-my-subplot-command-skipping-the-first-graph-s-title-and-labels

评论： Mr. 206 2019-1-11

prob01.png

This is my code where i am plotting two bar plot in one graph. However my first graph should be case:28 then case:29 as mentioned by the title. But my code is always skipping the first graph and pushing it at the end without anykind of label and title. I also attached my graph.

C28=rand(5,1);
figure(1)
title('Case:28','fontsize',10,"fontweight","Bold");
xlabel('Kinetic Mechanisms')
ylabel('SSE')
subplot(2,4,1)
hold on
for i = 1:length(C28)
    h=bar(i,C28(i));
    if C28(i) == min(C28)
        set(h,'FaceColor','b');
    elseif C28(i) == max(C28)
        set(h,'FaceColor','r');
    else
        set(h,'FaceColor','k');
    end
    
end
C29=rand(5,1);
figure(1)
title('Case:29','fontsize',10,"fontweight","Bold");
xlabel('Kinetic Mechanisms')
ylabel('SSE')
box on
subplot(2,4,2)
hold on
for i = 1:length(C29)
    h=bar(i,C29(i));
    if C29(i) == min(C29)
        set(h,'FaceColor','b');
    elseif C29(i) == max(C29)
        set(h,'FaceColor','r');
    else
        set(h,'FaceColor','k');
    end
end
hold off

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Answer 1

Adam Danz 2019-1-11

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/439362-why-my-subplot-command-skipping-the-first-graph-s-title-and-labels#answer_356009

编辑：Adam Danz 2019-1-11

在 MATLAB Online 中打开

You're calling title(), xlabel() and ylabel() prior to calling subplot() so instead of applying these functions to the new subpot, you're overwrting the previous one. Move those function to a line that's after subplot(2,4,2).

C29=rand(5,1);
figure(1)
subplot(2,4,2)  %<- moved up
title('Case:29','fontsize',10,"fontweight","Bold");
xlabel('Kinetic Mechanisms')
ylabel('SSE')
box on
hold on
for i = 1:length(C29)
    h=bar(i,C29(i));
    if C29(i) == min(C29)
        set(h,'FaceColor','b');
    elseif C29(i) == max(C29)
        set(h,'FaceColor','r');
    else
        set(h,'FaceColor','k');
    end
end
hold off

This is why it's always good practice to use handles to specify the parent of objects. For example,

s2 = subplot(2,4,2);
title(s2, 'Case:29','fontsize',10,"fontweight","Bold");
xlabel(s2, 'Kinetic Mechanisms')
ylabel(s2, 'SSE')
% ...
h = bar(s2, i,C29(i));