how to label multiple bars within the same x-value

2020 5 5
1 个回答
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更新时间：2020 5 6
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Hej im trying to create a plot of some testvalues, and i simply cant figure out a way to label multiple bars within the same x-value.
The test data comes out in a 6 x M matrix telling the time datacollection time and a 4 x M matrix with the testdata were each column is zone1, zone2, zone3 and zone4.
i've tried this so far:
Zones={'zone1','zone2','zone3','zone4'};
X=tvec_a(:,4);
Y=data_a;
bar(X,Y,1)
set(gca,'xticklabel',Zones)
title('Hourly consumption')
xlabel('Hour')
ylabel('Consumption')
But this simply output all four columns with the same same instead of each column was devided into zones for each x-val:

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Joakim Mørk
Joakim Mørk 2020-5-6

0 个投票

After a whole lot of research, I've found nothing that solves that excact problem. Allthough I ended up finding two solutions wich solves the issue of telling the individual bars from oneanother:
1) using legend:
b=bar(tvec_a(:,N),data_a,1);
title(name)
xlabel(X)
ylabel('Consumption')
axis([-inf inf -inf inf])
legend({'zone 1','zone 2', 'zone 3', 'zone 4'},'Location','northwest')
grid on
2) using bar labels
b=bar(tvec_a(:,N),data_a,1);
title(name)
xlabel(X)
ylabel('Consumption')
xtips1 = b(1).XEndPoints;
ytips1 = b(1).YEndPoints;
labels1 = 'z_1';
text(xtips1,ytips1,labels1,'HorizontalAlignment','center',...
'VerticalAlignment','top','color','w')
xtips2 = b(2).XEndPoints;
ytips2 = b(2).YEndPoints;
labels2 = 'z_2';
text(xtips2,ytips2,labels2,'HorizontalAlignment','center',...
'VerticalAlignment','top','color','w')
xtips3 = b(3).XEndPoints;
ytips3 = b(3).YEndPoints;
labels3 = 'z_2';
text(xtips3,ytips3,labels3,'HorizontalAlignment','center',...
'VerticalAlignment','top','color','w')
xtips4 = b(4).XEndPoints;
ytips4 = b(4).YEndPoints;
labels4 = 'z_2';
text(xtips4,ytips4,labels4,'HorizontalAlignment','center',...
'VerticalAlignment','top','color','w')
axis([-inf inf -inf inf])
grid on
I personally thinks the legend is the better sollution

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