Azzera filtri
Azzera filtri

Indices shown in plot are off

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Davis
Davis il 17 Mag 2024
Commentato: Torsten il 22 Mag 2024 alle 17:46
For large vectors, the indices shown in a figure are a bit off. For example:
test = [zeros(1,1079998), 1, zeros(1,1457106-1079998), 1, zeros(1,2159999-1457108)];
find(test) % gives correct indices: 1079999 1457108
figure; plot(test)
% The labeling of the 1's in the plot using data tips give idices of 1080000 and 1457110
This is probably a numeric precision issue.

Risposte (1)

Torsten
Torsten il 17 Mag 2024
Modificato: Torsten il 17 Mag 2024
My guess is that the x-axis has a resolution of 10.
  7 Commenti
Davis
Davis il 22 Mag 2024 alle 16:40
Modificato: Davis il 22 Mag 2024 alle 16:42
I got the following response from Mathworks:
After initial investigation, the description matches our record and indicates this is likely a known bug. The potential reason is that the datatip is using "%g" as output format. I want to let you know that our development team is aware of this issue. We appreciate your effort in identifying and reporting issues to help us provide our users with better experience using MATLAB.
Meanwhile you could manually set the datatip output format with the following code:
test = [zeros(1,1079998), 1, zeros(1,1457106-1079998), 1, zeros(1,2159999-1457108)];
find(test) % gives correct indices: 1079999 1457108
figure;
p = plot(test)
p.DataTipTemplate.DataTipRows(1).Format ='%d'
Torsten
Torsten il 22 Mag 2024 alle 17:46
Thank you for coming back and posting TMW's answer here.

Accedi per commentare.

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