How to change the numbering system in the y axis? pitcure inside

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Bander 2014-6-24

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评论： Sara 2014-6-25

Hi

I am new user to Matlab. I have 2 million entries and want to plot them as histogram. The problem I am getting the figure as the one attached where you can notice the y axis start from 0*10^5,0.5*10^5, ..... where I want it like: 1*10^5,2*10^5.... I want the y axis appear like the second picture.

<</matlabcentral/answers/uploaded_files/14594/Untitled.jpg

>>

here is the code I am using:

mydata1=load('data_m256_k5_n37.txt');
pp=hist(mydata1(:,1),max(mydata1(:,1))-min(mydata1(:,1))+1);
figure(1)
bar(min(mydata1(:,1)):max(mydata1(:,1)),pp,'w', 'LineWidth',2)
grid on
xlabel('\rho','FontSize',12)
ylabel('','FontSize',12)

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Answer 1

Sara 2014-6-24

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在 MATLAB Online 中打开

I can't see Fig 2 but I think you can rescale the yaxis and the replace the y-ticks if you want the exponent close to each tick:

xx = pp/1e5;
bar(min(mydata1(:,1)) : max(mydata1(:,1)),xx,'w', 'LineWidth',2)
yt = get(gca,'ytick')
ytstr = cell(numel(yt),1);
for i = 1:numel(yt)
    ytstr{i} = [num2str(yt(i)),char(215),'10^5'];
end
set(gca,'YTicklabel',ytstr)

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Answer 2

Bander 2014-6-24

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Thanks for your reply here are the two figures. I want the y axis in fig 1 displayed as same as fig2.

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Sara 2014-6-24

What exactly do you want different than fig 1, because they look the same to me?

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Answer 3

Bander 2014-6-24

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In the first figure y axis start with 0, 0.5, 1, 1.5, 2, 2.5,3)x 10e5 Wereas I want them to exactly as the secound figure. i now the valuse are same but the way they reprsnred is diffrent. The same code above some times gives me y axis like the second figure which is good. But other times it gives me like the first figure but diffrent valuse. I am not sure what should I add to the code to force matlab to represnt the y axis as in figure 2.

Thanks