Huge Execution Time Discrepancy with line() Command
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
The following code takes no more than 4 seconds to execute:
figure(statfig);
set(gcf,'Position',get(0,'ScreenSize').*[1 1 0.5 1]);
titlestr = [test ' - Statistics - ' num2str(rpmval) 'RPM - ' samplestr ' - ' upper(sensor)];
subplot(size(detdata,2),1,var);
plot(detdata(:,var)');
hold on;
% line([1:length(detdata)],avg_env_sample(var),'Color','r');
% line([1:length(detdata)],avg_env(var),'Color','g');
hold off;
% legend('Detrended Data','Envelope','Envelope Mean');
title([titlestr ' - ' varname]);
xlabel('Sample [n]');
ylabel([varname ' [g]']);
set(gcf,'Name',titlestr);
With the commented code uncommented, execution time goes up to two minutes. Similar code is executed 3 other times (without the line commands) without a problem.
Any suggestions?
3 commentaires
Réponse acceptée
Rob Graessle
le 14 Jan 2012
Are you expecting each call to 'line' to draw 15999 lines or just one line? If it is the latter, try this instead:
line([1 length(detdata)],avg_env_sample(var),'Color','r');
line([1 length(detdata)],avg_env(var),'Color','g');
2 commentaires
Walter Roberson
le 14 Jan 2012
It appears to me that var is a scalar, as otherwise the subplot() would not work. Then in order to draw a horizontal line, the y coordinate would need to be duplicated:
line([1 length(detdata)],avg_env_sample([var var]),'Color','r');
line([1 length(detdata)],avg_env([var var]),'Color','g');
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Line Plots dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!