How display a log space bar figure ?

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Mallouli Marwa
Mallouli Marwa il 25 Gen 2020
Risposto: Akira Agata il 25 Gen 2020
Hi I have plotted a bar figure but I want that the y axis log space.
Please can you rectify my code.
clear all
clc
maxV_l = [0.015232 0.020273 0.0069196 0.012027 0.010313 0.012567 0.014836 0.015071 0.016182 0.018388 0.013878];
maxV_m = [12.911 15.205 6.6378 10.659 9.3996 11.026 12.564 12.685 13.418 14.511 12.082];
maxV_h = [ 166.73 138.81 167.74 148.64 146.5 155.99 149.72 162.55 172.41 166.32 154.67];
% Create a vertical bar chart using the bar function
figure (1)
bar(1:11, [maxV_l' maxV_m' maxV_h'],1)
% Set the axis limits
set(gca,'xticklabel',{'PZT-5A','PZT-5H','PZT-7A','PZT-4','PZT-8','APC-8740','APC-850','SONOX-P504','SONOX-P508','PIC-151','PIC-255'});
% Add title and axis labels
xlabel('Material')
ylabel('|Peak Voltage| [V/g]')
% Add a legend
legend('Rl=100\Omega', 'Rl=100k\Omega', 'Rl=10M\Omega')

Risposta accettata

Stephan
Stephan il 25 Gen 2020
% Set y-axis to log scale
set(gca, 'YScale', 'log')

Più risposte (1)

Akira Agata
Akira Agata il 25 Gen 2020
Please set YScale property of the axes to 'log'.
The following is an example.
maxV_l = [0.015232 0.020273 0.0069196 0.012027 0.010313 0.012567 0.014836 0.015071 0.016182 0.018388 0.013878];
maxV_m = [12.911 15.205 6.6378 10.659 9.3996 11.026 12.564 12.685 13.418 14.511 12.082];
maxV_h = [ 166.73 138.81 167.74 148.64 146.5 155.99 149.72 162.55 172.41 166.32 154.67];
% Create a vertical bar chart using the bar function
figure
bar([maxV_l' maxV_m' maxV_h'],1)
ax = gca;
ax.XTickLabel =...
{'PZT-5A','PZT-5H','PZT-7A','PZT-4','PZT-8','APC-8740','APC-850','SONOX-P504','SONOX-P508','PIC-151','PIC-255'};
ax.XTickLabelRotation = 45;
ax.YScale = 'log';
ax.YLim(2) = 1e4; % To make additional space for a legend
% Add title and axis labels
xlabel('Material','FontSize',12)
ylabel('|Peak Voltage| [V/g]','FontSize',12)
% Add a legend
legend('Rl=100\Omega', 'Rl=100k\Omega', 'Rl=10M\Omega')
bar.png

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