Index in position 1 exceeds array bounds (must not exceed 1) -- cannot fix behavior script

Hello!

I need help with my behavior script -- I am trying to plot a .mat file that has the dimensions of ans: [2×8297 double]. When I run it through a behavior script I am getting the error Index in position 1 exceeds array bounds (must not exceed 1).

I understand that the .mat file and its dimensions are the problem -- but how do I fix it?

Any help would be much appreciated, I have tried converting it to a txt file but haven't had any luck!

subject='racsleep04'
run='run01'
clicks=load(['racsleep04_a_run01_clicks.mat'])

%%
starttime = clicks(2,1);   %HAVING ERROR ON THIS LINE

bp = clicks(2, find((clicks(1,:)~=22)&(clicks(1,:)~=0)))- starttime;


%% figure

figure(); subplot(2,1,1); plot(bp, ones(length(bp),1), '*'); title(['Button Press Times ', subject, ' ', run])
xlabel('Time');

subplot(2,1,2); plot(bp(2:end), diff(bp), '*'); title(['Button Press Intervals ', subject,' ', run]); xlabel('Time'); ylabel('Time since last click')

Answer 1

[Walter Roberson]

When you load() and assign the output to a variable, the result is a struct with one field for each variable loaded.

clickstr = load(['racsleep04_a_run01_clicks.mat']);
clicks = clickstr.clicks;

[nines]

thank you!

The value of clicks is 2*8000, and has a 1*1 structure, and so it is still not working -- do you have any ideas?

[Walter Roberson]

In the above code, clickstr would be a struct with a field named for each variable stored in the file. Based on context it looks like you were expecting the file to have a variable named clicks, but if the variable name in the file is something else, then you need to use that on the line

clicks = clickstr.FileVariableNameGoesHere;