Filling the empty array

I am new to matlab and attempting to fill an empty array with data from a for loop using a certain column of data (column f). However, when I try and run the code, it just spit backs out the data from column f and doesn't seem to do anything from the for loop but no errors are shown. Please help.

A = readmatrix('filename');

f = A(:,6);

start_c = [150 278 444 554 612 716];

time_c = [48 42 36 42 42 42];

end_c = [start_c + time_c];

start_dc = [96 214 332 388 496 668];

time_dc = [42 48 42 42 42 36];

end_d = [start_dc + time_dc];

crave = 1;

dcrave = 0;

rest = -1;

empty_array = [];

for ii = 1:length(f)

if f(ii) >= start_c & f(ii) <= end_c

crave;

elseif f(ii) >= start_dc & f(ii) <= end_dc

dcrave;

else f(ii)

rest;

end

empty_array(ii) = f(ii);

end

Answer 1

[Star Strider]

The code does not assign ‘crave’, ‘dcrave’ or ‘rest’ to anything.

What do you want the code to do with those values?

In the interim, perhaps something like:

empty_array = zeros(size(f));

for ii = 1:length(f)
    if f(ii) >= start_c & f(ii) <= end_c
        empty_array(ii) = crave;
    elseif f(ii) >= start_dc & f(ii) <= end_dc
        empty_array(ii) = dcrave;
    else f(ii)
        empty_array(ii) = rest;
    end
    empty_array(ii) = f(ii);
end

will do what you want.

.