Unable to perform assignment because the indices on the left side are not compatible with the size of the right side. What does this mean?

%% input data matrix

DDD=load('data2.mat');

data=DDD.data;

N_max=length(data);

window_size=256*3; %% 256 for 1 second ==> 3 seconds

step_win=128*3; %% overlapping window ...by 50%

segment=zeros(4798,768);

count=0;

for n_start = 1:step_win:(N_max-window_size)

count=count+1;

Segment(n_start)=data(n_start:(n_start+ window_size-1));

end

plot(Segment)

xlabel('time')

grid on;

title('data of channel1');

Answer 1

[James Tursa]

Look at this line:

Segment(n_start)=data(n_start:(n_start+ window_size-1));

and simply plug in the numbers for the first iteration to see what is going on:

Segment(1)=data(1:(1+ 256*3-1));

or

Segment(1)=data(1:768);

You can't stuff 768 elements into a 1 element spot.