Why am I getting error "Vectors must be the same length" although they are of same length?
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I am trying to plot a X,Y graph. I am getting an error "Vectors must be the same length", although I see in the workspace that they are of the same length. It is working for most of the trials in the table, but throwing an error for some entries. What could be the problem? I have attached the table. Here is my code for the plot.
plot(subject_data.xcoordinates2{subject_data.trialname == 'Trial40'}, ...
subject_data.ycoordinates2{subject_data.trialname == 'Trial40'});
The error is as follows.
Error using plot
Vectors must be the same length.
Error in maze_outlier (line 137)
plot(subject_data.xcoordinates2{subject_data.trialname == 'Trial40'}, ...
2 Commenti
Torsten
il 13 Giu 2022
Before the plot command, insert
size(subject_data.xcoordinates2{subject_data.trialname == 'Trial40'})
size(subject_data.ycoordinates2{subject_data.trialname == 'Trial40'})
What do you get as output ?
Risposta accettata
Voss
il 13 Giu 2022
Modificato: Voss
il 13 Giu 2022
load('subject_data.mat')
disp(subject_data)
% There are 2 Trial40's in the table:
find(subject_data.trialname == 'Trial40')
% To plot both, you can collect the x- and y-coordinates in a cell array like this:
args = { ...
subject_data.xcoordinates2{subject_data.trialname == 'Trial40'} ...
subject_data.ycoordinates2{subject_data.trialname == 'Trial40'}}
% but they are in order [x1 x2 y1 y2], so you have to make them [x1 y1 x2 y2]:
args = args([1:2:end 2:2:end])
% and then send them to plot() in that order:
plot(args{:});
Più risposte (1)
David Hill
il 13 Giu 2022
Modificato: David Hill
il 13 Giu 2022
You have two 'Trial40'
plot(subject_data.xcoordinates2{find(subject_data.trialname == 'Trial40',1)}, ...
subject_data.ycoordinates2{find(subject_data.trialname == 'Trial40',1)});
plot(subject_data.xcoordinates2{find(subject_data.trialname == 'Trial40',1,'last')}, ...
subject_data.ycoordinates2{find(subject_data.trialname == 'Trial40',1,'last')});
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