want to display the x value of the maximum in my graph?
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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')
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Image Analyst
2021년 6월 13일
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');
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/651680/image.png)
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Adam Danz
2021년 6월 13일
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');
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