MATLAB: How to rotate the x axes made by words

rotationx-lablexticklabel

Hi all,

I am trying to plot a 2D graph with the x-axes made with a string (words).

I would like to rotate the words of 45 degree.

here is my code

%

figure(1)
f1=plot(f,x1,'-sk','LineWidth', 1.5);
hold on
f2=plot(f,x2,'-sm','LineWidth', 1.5); 
hold on
f3=plot(f,x3,'-d','LineWidth', 1.5);
hold on
f4=plot(f,x4,'-^g','LineWidth', 1.5);
hold on
grid on
set(gca, 'XTick',1:5, 'XTickLabel',{'Healthy' 'Unbalance' 'Misalignment' 'Looseness' 'Rub'}) % these are the words to rotate
xlabel('Measurement set','fontweight','bold','fontsize',14);
ylabel('Amplitude','fontweight','bold','fontsize',14)
title('Bearing 1 40Hz CF','fontweight','bold','fontsize',16) 
legend('Bearing 1','Bearing 2','Bearing 3','Bearing 4')
%

Thanks in advance

Best Answer

If you are using version of Matlab after 2014b

set(gca,'xticklabelrotation',45)

If you haven't the latest version of Matlab, you can find it in File exchange http://www.mathworks.com/matlabcentral/fileexchange/27812-rotatexlabels--ax--angle--varargin--

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MATLAB: How can i use legend command when i am using hold on for plotting graphs? in the plot i want to use legend command to indicate the color for respective plot that is black for low pass,blue for high pass,green for power complementary,red for all pas

Use the legend function after the three plots

close all
k = input('Number of frequency points = ');     %%256
w = 0:pi/k:pi;
alpha=0.3
num=((1-alpha)/2)*[1 1]
den=[1 -alpha]
hlp=freqz(num,den,w)
num1=((1+alpha)/2)*[1 -1]
den1=[1 -alpha]
hhp=freqz(num1,den1,w)
figure
subplot(2,1,1)
plot(w/pi, abs(hlp),'k','LineWidth', 2);hold on
grid on;
xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')
ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')
title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')
set(gca, 'FontSize', 14, 'FontWeight', 'Bold')
plot(w/pi, abs(hhp), 'LineWidth', 2);hold on
grid on;
xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')
ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')
title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')
set(gca, 'FontSize', 14, 'FontWeight', 'Bold')
plot(w/pi, abs(all_pass),'r', 'LineWidth', 2);hold on
grid on;
xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')
ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')
title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')
set(gca, 'FontSize', 14, 'FontWeight', 'Bold')
legend ('low pass','high pass','all pass','Location', 'Northwest')
set(legend,'FontSize',7);

MATLAB: Can anyone help me to write a MATLAB script like the one attached

Yes. It's not exact, and the arrow is kludged but I hope it is good enough:

clc
clear all
close all
fig = figure('color','white','position',[40 300 700 475]);
hold on;
xlim([0 6]);
ylim([-6.5 -2.5]);
set(gca,'ydir','normal');
set(gca,'ytick',-6.5:0.5:-2.5);
ylabelString = get(gca,'yticklabel');
ylabelString{1} = 'HOMO';
ylabelString{end} = 'LUMO';
plot(0.02,-2.5,'^','markersize',10,'markerfacecolor','k','markeredgecolor','k');
set(gca,'linewidth',3);
set(gca,'yticklabel',ylabelString);
ylabel('Energy gap (eV)');
set(gca,'xtick',[]);
set(gca,'xcolor',[1 1 1]);
set(gca,'fontweight','bold');
set(gca,'fontsize',12);
% each energy transition
itransition = 0;
energy = -4.7;
plot([itransition+0.5 itransition+1],[energy energy],'k','Linewidth',5);
text(itransition+0.75,energy+0.25,num2str(energy,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
text(itransition+0.75,energy-0.25,'ITO', ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
itransition = 1;
energy1 = -5.2;
plot([itransition+0.5 itransition+1],[energy1 energy1],'k','Linewidth',5);
text(itransition+0.75,energy1-0.25,num2str(energy1,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
text(itransition+0.75,energy1-0.5,'P3HT', ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
energy2 = -3.2;
plot([itransition+0.5 itransition+1],[energy2 energy2],'k','Linewidth',5);
text(itransition+0.75,energy2+0.25,num2str(energy2,'%.2f'), ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
h = text(itransition+0.75,(energy1+energy2)/2,'E_g=2.00', ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
set(h,'Rotation',90);
itransition = 2;
energy1 = -5.56;
plot([itransition+0.5 itransition+1],[energy1 energy1],'k','Linewidth',5);
text(itransition+0.75,energy1-0.25,num2str(energy1,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
text(itransition+0.75,energy1-0.5,'AS1', ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
energy2 = -3.39;
plot([itransition+0.5 itransition+1],[energy2 energy2],'k','Linewidth',5);
text(itransition+0.75,energy2+0.25,num2str(energy2,'%.2f'), ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
h = text(itransition+0.75,(energy1+energy2)/2,'E_g=2.17', ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
set(h,'Rotation',90);
itransition = 3;
energy1 = -5.38;
plot([itransition+0.5 itransition+1],[energy1 energy1],'k','Linewidth',5);
text(itransition+0.75,energy1-0.25,num2str(energy1,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
text(itransition+0.75,energy1-0.5,'AS2', ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
energy2 = -3.45;
plot([itransition+0.5 itransition+1],[energy2 energy2],'k','Linewidth',5);
text(itransition+0.75,energy2+0.25,num2str(energy2,'%.2f'), ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
h = text(itransition+0.75,(energy1+energy2)/2,'E_g=1.93', ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
set(h,'Rotation',90);
itransition = 4;
energy1 = -6;
plot([itransition+0.5 itransition+1],[energy1 energy1],'k','Linewidth',5);
text(itransition+0.75,energy1-0.25,num2str(energy1,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
energy2 = -4.3;
plot([itransition+0.5 itransition+1],[energy2 energy2],'k','Linewidth',5);
text(itransition+0.75,energy2+0.25,num2str(energy2,'%.2f'), ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
h = text(itransition+0.75,(energy1+energy2)/2,'PC_{61}BM', ...
    'horizontalalignment','center', ...
    'fontsize',12,'fontweight','bold');
itransition = 5;
energy = -4.3;
plot([itransition+0.5 itransition+1],[energy energy],'k','Linewidth',5);
text(itransition+0.75,energy+0.25,num2str(energy,'%.2f'), ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');
text(itransition+0.75,energy-0.25,'Al', ...
    'horizontalalignment','center','fontsize',12,'fontweight','bold');

Best Answer

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MATLAB: How can i use legend command when i am using hold on for plotting graphs? in the plot i want to use legend command to indicate the color for respective plot that is black for low pass,blue for high pass,green for power complementary,red for all pas

MATLAB: Can anyone help me to write a MATLAB script like the one attached

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