# Obtain and plot values of a "for" loop

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Alex T. on 16 May 2021
Commented: Alex T. on 16 May 2021
Hello everyone! I am new to MATLAB and kinda unexperienced and i need your help for a script! I'm trying to obtain the values of y and y1 of the script bellow! In command window i receive the values but i can't plot them right or seing them as an array in workspace but only seperated. Can anyone please tell me where am i wrong? Thank you!
x=[0:0.1:1];
for i=0:0.1:1
y=2*(-88404*i*(1-i)*(6*(i-1)-4.1*i))/(12640.5*(1-i)+16860*((6-4.1)*i-6)*(-2)*(((4.1-6)*i)+6)+618272*(i^2))
x1=i;
y1=(-105258*i*(1-i))/(69126*i+101160*(1-i)-12640.5*(1-i))
end
plot (x,y,'o')

David Fletcher on 16 May 2021
you need to retain the values of y as you go through each iteration of the loop. There are a few ways of doing it, but perhaps the quick and dirty way in the context of your loop is:
x=[0:0.1:1];
y=[];
for i=0:0.1:1
y=[y 2*(-88404*i*(1-i)*(6*(i-1)-4.1*i))/(12640.5*(1-i)+16860*((6-4.1)*i-6)*(-2)*(((4.1-6)*i)+6)+618272*(i^2))]
x1=i;
y1=(-105258*i*(1-i))/(69126*i+101160*(1-i)-12640.5*(1-i))
end
plot (x,y,'o-')
Alex T. on 16 May 2021
Thank you very much David! Really appreciate it! Wish you all the best for the future!

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