How to use for or while loop for certain range?

I want to add or substract a certain number to my array cell (result(i)) based on corresponding binary(0 or 1) pattern I have . Condition: if binary_pattern is 1 then it should increase with speed of 0.75 per minute, if zero it should decrease with the same speed(-0.75). But when binary_pattern is 1 and inside the range 15 and 20 it should increase by 1 not 0.75. Which means when result reaches 20, has to decrease by and increase again when hits 15 with the speed of 1. Any advices on that? I have tried with the code below, but due to I'm new to Matlab couldn't get my head around it. Thanks in advance!

binary_pattern = zeros(100,1);
binary_pattern(1:25) = 1;
binary_pattern(50:75) = 1;
binary_pattern(90:100) = 1; % to create binary pattern 

minutes = [1:100]';    % scale of minutes

result = zeros(100,1);    
result(1,1) = 5;          % initial condition of a state

for i = 1:100
    if binary_pattern(i) == 1 
        result(i+1) = result(i) + 0.75;
        if result(i)>= 20
            result(i+1) = result(i) - 1;
        elseif result(i)<= 15
            result(i+1) = result(i) + 1;
        else
        end 
    else
        result(i+1) = result(i) - 0.75;
    end
end
result(end,:) = [];
plot(minutes,result)  

Answer 1

[Asrorkhuja Ortikov]

binary_pattern = zeros(100,1);
binary_pattern(1:25) = 1;
binary_pattern(50:75) = 1;
binary_pattern(90:100) = 1; % to create binary pattern 
minutes = [1:100]';    % scale of minutes
result = zeros(100,1); 
result(1,1) = 15;          % initial condition of a state
DeS = 0;
for i = 1:100
    if  binary_pattern(i) == 1 
         result(i+1) = result(i) + 1;
         if DeS == -1
            result(i+1) = result(i) - 1;
         end   
         if result(i+1)>20 
            result(i+1)= result(i) - 1;
            DeS = -1;
         end
         if result(i+1)<15
            result(i+1) = result(i) + 1;
            DeS = 0;
         end
         
         
    else % pattern is 0
        result(i+1) = result(i) - 0.75;
    end 
end
result(end,:) = [];
plot(minutes,result)

Answer 2

[SC]

I've edited the code, according to your logic (from what I've understood)

(Try explaining your logic better)

see if this works, incase:

zerosmatrix = zeros(100,1);
zerosmatrix(1:25) = 1;
zerosmatrix(50:75) = 1;
zerosmatrix(90:100) = 1;
timeframe = [1:100]';
state = zeros(100,1);
for i = 1:100
    if zerosmatrix(i) == 1 
        state(i+1) = state(i) + 0.75;
        if state(i)>= 15 && state(i)<= 20
            state(i+1) = state(i) + 1;
        elseif state(i)>= 20
            state(i+1) = state(i) - 1;
        end 
    else
        state(i+1) = state(i) - 0.75;
    end
end
state(end,:) = [];
plot(timeframe,state)  

[Asrorkhuja Ortikov]

@SC You are right, I have edited my question. Have a look, hopefully this time is much more understandable. Sorry for confusion. And no the code is working almost same as mine. The thing is when result reaches 20 (max) it should fluctuate between 15 and 20 with the same speed, in our case 1 or -1 until the pattern changes to zero.

[SC]

Your logic won't hit 15 ever, because in the range of 15 to 20 you want it to increase but when it hits 20 you want it to decrease to go to 15? it won't.. immediately after 20 is decreased by 1 it will be around 19 and 19 is in te range of 15 & 20.. which will start increasing again.. I've written a while loop to satisfy your logic, check this once:

binary_pattern = zeros(100,1);
binary_pattern(1:25) = 1;
binary_pattern(50:75) = 1;
binary_pattern(90:100) = 1; % to create binary pattern 
minutes = [1:100]';    % scale of minutes
result = zeros(100,1); 
result(1,1) = 5;          % initial condition of a state
for i = 1:100
    if binary_pattern(i) == 1 
        if result(i)>= 15 && result(i)< 20
            result(i+1) = result(i) + 1;
        elseif result(i) >= 20 && result(i) < 21
             while result(i)>= 15
                result(i+1) = result(i) - 1;
                i = i+1;
            end
            
        elseif result(i) < 15 || result(i) >= 21
            result(i+1) = result(i) + 0.75;
        end 
    else
        result(i+1) = result(i) - 0.75;
    end
end
result(end,:) = [];
plot(minutes,result)  

[Asrorkhuja Ortikov]

@SC it's still bouncing back from 19

[SC]

Hey that is because of the binary pattern, please try another binary pattern and check.

[Asrorkhuja Ortikov]

@ SC I did, but it is still not working? Did you check it yourself first? Here I took different approach, have a look:

binary_pattern = zeros(100,1);
binary_pattern(1:25) = 1;
binary_pattern(50:75) = 1;
binary_pattern(90:100) = 1; % to create binary pattern 
minutes = [1:100]';    % scale of minutes
result = zeros(100,1); 
result(1,1) = 15;          % initial condition of a state
DeS = 0;
for i = 1:100
    if  binary_pattern(i) == 1 
         result(i+1) = result(i) + 1;
         if DeS == -1
            result(i+1) = result(i) - 1;
         end   
         if result(i+1)>20 
            result(i+1)= result(i) - 1;
            DeS = -1;
         end
         if result(i+1)<15
            result(i+1) = result(i) + 1;
            DeS = 0;
         end
         
         
    else % pattern is 0
        result(i+1) = result(i) - 0.75;
    end 
end
result(end,:) = [];
plot(minutes,result)