Why is my MATLAB code not executing properly?

Everytime it asks me to choose a number btwn 1-100 and when i do, lets say i choose 53, it will display "so sad :( you have to go to class" then proceed to enter a number for what i want for breakfast but it should proceed to ask what path i want to go to school. Also, i cant press "run" to run my code i have to press f9 or copy and paste it into the command window. Please help, thank you!

clc;

disp('Its 7am wake up!')

n = input('Choose a number 1-100 to start your day ')

if n == 100

disp('Congratulations you get to sleep for the rest of the day')

elseif n > 50

disp('So sad :( you have to get ready for class')

elseif n > 20 disp('Sleep in for 20 more mins')

elseif n > 0 disp('Screw school, Im skipping today!')

end

for n = 0:20

disp('Enter a number for what you want for breakfast')

breakfast = input('1 burrito 2 cereal 3 nothing')

if breakfast == 1

disp('Good choice, your day will be prosperous')

elseif breakfast == 2

disp('Peanut butter capn crunch it is')

elseif breakfast == 3

disp('Not a good choice you will probably die today')

end

end

for n = 51:99

disp('Enter a number for what path will I take to school')

path = input('1 for linear path 2 for exponential path')

if path == 1

x1 = linspace(0,5,.2)

y1 = 2*x1 + 7

plot (x1,y1)

elseif path == 2

for x2 = 0:.2:5

y2 = x2^2

plot (x2,y2)

end

end

end

Answer 1

[Raj]

Hi,

1) In your first if-else part of code, I feel it is better to add a default condition also to take care of any value out of valid range like this:

if n == 100
    disp('Congratulations you get to sleep for the rest of the day')
elseif n > 50
    disp('So sad :( you have to get ready for class')
elseif n > 20 disp('Sleep in for 20 more mins')
elseif n > 0 disp('Screw school, Im skipping today!')
else
disp("Invalid entry") % exit the code if user inputs invalid value
end

2) Instead of

for n = 0:20

you should use

if n >0 && n<=20

3) Instead of

for n = 51:99

you should use

if n >50 && n<100

4) "RUN" is working perfectly for me. I am using 2016a version.

[whyamiincollege]

So i fixed it to what you said and RUN still isn't working. I highlighted it and pressed f9 and its still displaying this :

breakfast =

[]

Enter a number for what you want for breakfast

1 burrito 2 cereal 3 nothing

[Raj]

This is the modified code:

clc;
disp('Its 7am wake up!')
n = input('Choose a number 1-100 to start your day ')
if n == 100
    disp('Congratulations you get to sleep for the rest of the day')
elseif n > 50
    disp('So sad :( you have to get ready for class')
elseif n > 20 disp('Sleep in for 20 more mins')
elseif n > 0 disp('Screw school, Im skipping today!')
else
disp('Invalid entry')
end
if n >0 && n<=20
    disp('Enter a number for what you want for breakfast')
    breakfast = input('1 burrito 2 cereal 3 nothing')
    if breakfast == 1
        disp('Good choice, your day will be prosperous')
    elseif breakfast == 2 
        disp('Peanut butter capn crunch it is')
    elseif breakfast == 3
        disp('Not a good choice you will probably die today')
    end
end
if n >50 && n<100
    disp('Enter a number for what path will I take to school')
    path = input('1 for linear path 2 for exponential path')
    if path == 1 
        x1 = linspace(0,5,.2)
        y1 = 2*x1 + 7
        plot (x1,y1)
    elseif path == 2
        for x2 = 0:.2:5
            y2 = x2^2
            plot (x2,y2)
        end
    end
end

Works fine. "RUN" is also working fine for me. Which version are you using?