How to plot histogramme?

Question

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How can I plot histograme of a vector with four values independant?

v=[1; 2;0;1]

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Answer 1

Adam Danz 2020-1-8

编辑：Adam Danz 2020-1-8

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If those values describe the bar height, you could use bar(___,width) and specify the width of the bars as 1 to resemble a histogram.

v=[1; 2;0;1]; 
bar(v,1)  % figure shown below

Alternatively, you can use histogram('BinEdges',edges,'BinCounts',counts) which specifies the bin edges.

histogram('BinEdges',.5 : 1 : 4.5,'BinCounts',v)

Mira le 2020-1-8

each bar of the histogramme with a different color

Adam Danz 2020-1-8

编辑：Adam Danz 2020-1-8

If you're using the bar() approach,

b = bar(v,1);
b.FaceColor = 'flat';     
b.CData = [1 0 0; 0 1 0; 0 0 1; 1 1 0]; % set color of each bar

If you're using the histogram() approach, you'll need to loop through each value of v and plot each bar separately (this is not recommended).