How to start at 0?
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For this assignment I have to start at 0, this means that when I plot the figure, it has to start at 0 and end at 30. With the code that I wrote, it starts at 1 and ends at 31 when I plot it. How can I fix this?
x=zeros(31,1);
y=zeros(31,1);
i=0;
for i = 0:30;
if i == 0
x((i+1),1)= sum(sum(M));
y((i+1),1)= 0;
i = i+1;
else
[M,l]=k(M);
x((i+1),1)=sum(sum(M));
y((i+1),1)=l;
i=i+1;
end
end
4 Comments
Geoff Hayes
on 19 Apr 2015
Anna - what is the code that you are using to plot the data? Is it x versus y or something else? Since x is just the sum of all elements in the matrix M then it won't necessarily start at zero...
As an aside, you can simplify the double sum of M to simply
x((i+1),1) = sum(M(:));
Answers (1)
Geoff Hayes
on 19 Apr 2015
Anna - if you wish to plot the first element of y against zero, and each subsequent value at 1,2,3,... then just do the following
plot(0:length(y)-1,y,'ro');
which will plot all elements of y against values of "x" (this isn't your x but the x-axis) from 0 to 30.
Try the above and see what happens!
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