labels not showing for subplots - using xTicks xTickLabels

I need to specify where does a new hour start while plotting HRV data. As this happens at specific locations along my vector, while not having the same amount of samples in each hour, I use Xticks and XTickLabels. Please see my code below. My problem is that, the labels are shown only for my first subplot. Tried moving the set function before-after plot, it didn't help. I guess it is something with how Matlab handles axis or something, but I couldn't figure it out. Could anyone help with this matter?

%% data generation

X = rand([106378,1]);
one_plot = 20000;
hour_sub1 = [6066;11769;17113];
tick_label_1 = 1:size(hour_sub1);
hour_sub2 = [22485;27750;33093;38320];
tick_label_2 = tick_label_1(end)+1 : tick_label_1(end)+1 + size(hour_sub2)-1;
hour_sub3 = [44098; 49094; 54066; 58149];
tick_label_3 = tick_label_2(end)+1 : tick_label_2(end)+1 + size(hour_sub3)-1;
hour_sub4 = [62221; 66445; 70065;73916;77564];
tick_label_4 = tick_label_3(end)+1 : tick_label_3(end)+1 + size(hour_sub4)-1;
hour_sub5 = [81399; 84976; 88595; 92340; 97793];
tick_label_5 = tick_label_4(end)+1 : tick_label_4(end)+1 + size(hour_sub5)-1;
hour_sub6 = 103341
tick_label_6 = tick_label_5(end)+1 : tick_label_5(end)+1 + size(hour_sub6)-1;

%% Plotting problem
figure
subplot(6,1,1)
%figure
plot(X(1:one_plot))
set(gca, 'XTick', hour_sub1, 'XTickLabel', tick_label_1);
ylim([0.0, 3])

subplot(6,1,2)
%figure
plot(X(one_plot+1:2*one_plot))
set(gca, 'XTick', hour_sub2, 'XTickLabel', tick_label_2)
ylim([0.0, 3])

subplot(6,1,3)
%figure
plot(X(2*one_plot+1:3*one_plot))
set(gca, 'XTick', hour_sub3, 'XTickLabel', tick_label_3)
ylim([0.0, 3])

subplot(6,1,4)
%figure
plot(X(3*one_plot+1:4*one_plot))
set(gca, 'XTick', hour_sub4, 'XTickLabel', tick_label_4)
ylim([0.0, 3])

subplot(6,1,5)
%figure
plot(X(4*one_plot+1:5*one_plot))
set(gca, 'XTick', hour_sub5, 'XTickLabel', tick_label_5)
ylim([0.0, 3])

subplot(6,1,6)
%figure
plot(X(5*one_plot+1:size(X)))
set(gca, 'XTick', hour_sub6, 'XTickLabel', tick_label_6)
ylim([0.0, 3])

Answer 1

[Ameer Hamza]

You forgot to specify the x-coordinates in plot(). Try this

%% Plotting problem
figure
subplot(6,1,1)
%figure
plot(1:one_plot, X(1:one_plot))
set(gca, 'XTick', hour_sub1, 'XTickLabel', tick_label_1);
ylim([0.0, 3])
subplot(6,1,2)
%figure
plot(one_plot+1:2*one_plot, X(one_plot+1:2*one_plot))
set(gca, 'XTick', hour_sub2, 'XTickLabel', tick_label_2)
ylim([0.0, 3])
subplot(6,1,3)
%figure
plot(2*one_plot+1:3*one_plot, X(2*one_plot+1:3*one_plot))
set(gca, 'XTick', hour_sub3, 'XTickLabel', tick_label_3)
ylim([0.0, 3])
subplot(6,1,4)
%figure
plot(3*one_plot+1:4*one_plot, X(3*one_plot+1:4*one_plot))
set(gca, 'XTick', hour_sub4, 'XTickLabel', tick_label_4)
ylim([0.0, 3])
subplot(6,1,5)
%figure
plot(4*one_plot+1:5*one_plot, X(4*one_plot+1:5*one_plot))
set(gca, 'XTick', hour_sub5, 'XTickLabel', tick_label_5)
ylim([0.0, 3])
subplot(6,1,6)
%figure
plot(5*one_plot+1:size(X), X(5*one_plot+1:size(X)))
set(gca, 'XTick', hour_sub6, 'XTickLabel', tick_label_6)
ylim([0.0, 3])

[Tamás Böndi]

awesome, thanks!

[Ameer Hamza]

I am glad to be of help.