want to display the x value of the maximum in my graph?
61 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Rehanos_boyzee
le 12 Juin 2021
Commenté : Adam Danz
le 13 Juin 2021
for the code below i want to display the maximum value of x on the graph can anyone please let me know thanks?
[GC,GR]=groupcounts (VarName8); % taking values from the excel sheet
area=table(GC, GR); % all areas with the number of trips to each have been totaled in this table in random order
sorted_area=sortrows(area,-1); % sorting the area and number of trips in a descending order
[Highest,index]=max(GC);
plot(GR,GC,'Linewidth',1.2,'color','b'); xlabel('Area Number'); ylabel('Total Trips');
grid on
hold on
plot(GR(index),GC(index),'r*'); text(GR(index),GC(index),'\leftarrow Maximum')
2 commentaires
Réponse acceptée
Image Analyst
le 13 Juin 2021
Try this:
x=[1 2 3 4 5 6];
y=[5 6 7 6 5 4];
[highest,index] = max(y)
plot(x,y); text(x(index), y(index), '\leftarrow')
ylim([4, 8]);
grid on;
caption = sprintf(' maximum point at (x,y) = (%.1f, %.1f)', x(index), highest);
text(x(index), y(index), caption, 'FontSize', 12, 'Color', 'r', 'FontWeight', 'bold');
2 commentaires
Adam Danz
le 13 Juin 2021
You could insert the arrow directly within the label rather than plotting the arrow and label separately and starting the label with empty space.
x=[1 2 3 4 5 6];
y=[5 6 7 6 5 4];
[highest,index] = max(y);
plot(x,y);
ylim([4, 8]);
grid on;
caption = sprintf('maximum point at (x,y) = (%.1f, %.1f)', x(index), highest);
text(x(index), y(index), [' \leftarrow ',caption], 'FontSize', 8.5, 'Color', 'r', 'FontWeight', 'bold');
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Develop Apps Using App Designer 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!