How can I plot an histogram?

Question

Chiara Scarpellini 2021-9-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1451694-how-can-i-plot-an-histogram

编辑： Star Strider 2021-9-12

I need to plot an histogram with these values:

number_of_events=[30.60, 32.30, 32.30, 32.30, 32.30, 2.60, 12.60, 32.30, 32.30, 9.70, 25, 13.20, 18.10, 32.30, 2.50, 32.30]

I don't know why this is not working

number_of_events=number_of_events
figure 
histogram(number_of_events,16)
ylim([0 35])
ylabel('Number of events per year')
xticks('27CRA01','23ARV00','29CRD99','28XRA01','15ART03','08BRS01','26ARB01','34XRJ01','34XRI01','00LYF01','31ARA01','05BRM01','29BRL99','34XRH01','20ARB01','00OR100')
title('Times CSOs discharge per year')

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Answer 1

Star Strider 2021-9-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1451694-how-can-i-plot-an-histogram#answer_785819

编辑：Star Strider 2021-9-12

在 MATLAB Online 中打开

Try something like this —

number_of_events=[30.60, 32.30, 32.30, 32.30, 32.30, 2.60, 12.60, 32.30, 32.30, 9.70, 25, 13.20, 18.10, 32.30, 2.50, 32.30];

number_of_events=number_of_events;

figure

hh = histogram(number_of_events,16);

BinCtrs = hh.BinEdges(1:end-1) + mean(diff(hh.BinEdges))/2;

ylim([0 35])

ylabel('Number of events per year')

xtickc = {'27CRA01','23ARV00','29CRD99','28XRA01','15ART03','08BRS01','26ARB01','34XRJ01','34XRI01','00LYF01','31ARA01','05BRM01','29BRL99','34XRH01','20ARB01','00OR100'};

set(gca, 'XTick',BinCtrs, 'XTickLabel',xtickc)

title('Times CSOs discharge per year')

Experiment to get different results.

However, if you want to plot a bar plot and not compute the histogram —

number_of_events=[30.60, 32.30, 32.30, 32.30, 32.30, 2.60, 12.60, 32.30, 32.30, 9.70, 25, 13.20, 18.10, 32.30, 2.50, 32.30];

number_of_events=number_of_events;

figure

hb = bar(number_of_events);

% BinCtrs = hh.BinEdges(1:end-1) + mean(diff(hh.BinEdges))/2;

ylim([0 35])

ylabel('Number of events per year')

xtickc = {'27CRA01','23ARV00','29CRD99','28XRA01','15ART03','08BRS01','26ARB01','34XRJ01','34XRI01','00LYF01','31ARA01','05BRM01','29BRL99','34XRH01','20ARB01','00OR100'};

set(gca, 'XTick',hb.XData, 'XTickLabel',xtickc)

title('Times CSOs discharge per year')

Experiment to get different results.

.

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Answer 2

Sulaymon Eshkabilov 2021-9-12

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1451694-how-can-i-plot-an-histogram#answer_785824

在 MATLAB Online 中打开

there is an err in your code. Here is the corrected one:

number_of_events=[30.60, 32.30, 32.30, 32.30, 32.30, 2.60, 12.60, 32.30,32.30, 9.70, 25, 13.20, 18.10, 32.30, 2.50, 32.30];

histogram(number_of_events,16)

ylim([0 35])

ylabel('Number of events per year')

xticklabels({'27CRA01','23ARV00','29CRD99','28XRA01','15ART03','08BRS01','26ARB01','34XRJ01','34XRI01','00LYF01','31ARA01','05BRM01','29BRL99','34XRH01','20ARB01','00OR100'})

xtickangle(45)

title('Times CSOs discharge per year')