matplotlib - change color graphic bar matlab

Question

I have two datasets of data printed on the same graph, what I want is to differentiate the information by putting a legend that indicates the color of each of the two pieces of information in the graph. I cannot solve this, that is, I have not been able to put a different color to each information and also a legend that shows what data each color belongs to.1

My code

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         %grafica de barras 1
         bar(app.CasosUIAxes,data1.dateRep,data1.cases,'r')
        
        %grafica de barras 2
        bar(app.CasosUIAxes,data2.dateRep,data2.cases)
       
        

        %personalizacion de la grafica
        text = strcat('Casos por día en:',{' '}, pais1,{' '},'vs',{' '},pais2) ;
        legend(app.CasosUIAxes,text,'Location',"northwest")
        xlabel(app.CasosUIAxes,'Fecha')
        ylabel(app.CasosUIAxes,'Cantidad de casos')
        axis(app.CasosUIAxes,'tight')
        xtickangle(app.CasosUIAxes,90)
        grid(app.CasosUIAxes,"on")
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You can only differentiate the lighter bars from the dark ones, the idea is to change that color to a color, for example a red and black. At the same time in the legend show the indications of these two colors.

Answer 1

You can try this, bar(app.CasosUIAxes,data1.dateRep,data1.cases, 'r') bar(app.CasosUIAxes,data2.dateRep,data2.cases, 'b')

For adding legend to bar graphs,

b1 = bar(x, y1);

hold on

b2 = bar(x, y2);

legend([b1 b2],'Bar Chart 1','Bar Chart 2')

Source:: Matlab Documentation Page. (link)