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From: Sean Douglas on 6 Aug 2010 12:02
Hello, I have a for loop that is iterating every other number for some reason. I can’t figure out why. I put an i in the code right after the for loops first line and the output it is showing is saying that this for loop is counting up by 2’s. here’s the code, I think the really important info is the for loop but I will show you as much as I can incase having this for loop work with another for loop and being in a while loop could somehow make it count by 2’s.
xx=0;
yy=0;
p=0;
m=1;
flag=1;
profit=0;
prof=0;

while(m+p<=n)

for i =(m+p):n;
i % to check output
if((s(i)/Mc(i)-s2(i)/Mc2(i)>spread1)&&(flag==1))
sharesS2=s(i)/s2(i);
buy= s2(i) ;
buys2plot(end+1)=s2(i); axbuys2plot(end+1)=i;
spentbuyS2=sharesS2*buy;
short=s(i); shorts1plot(end+1)=s(i); axshorts1plot(end+1)=i;
sharesS1=1;
date1=t(i); datevector1open(end+1)=t(i); datevectorindexo1=i;
portvalue(end+1)=-s(i)+sharesS2*s2(i);
xx=1; flag=-1; dagger=1;


elseif((s2(i)/Mc2(i)-s(i)/Mc(i)>spread1)&&(flag==1))

sharesS2=s(i)/s2(i) ;
buy=s(i);
buys1plot(end+1)=s(i); axbuys1plot(end+1)=i;
sharesS2vec1(end+1)=sharesS2;
short=s2(i); shorts2plot(end+1)=s2(i); axshorts2plot(end+1)=i;
spentshortS2=sharesS2*short;
date2=t(i); datevector(end+1)=t(i); datevectorindexo2=i;

xx=1; flag=-1; dagger=2;

end
if(xx==1)
break, %shoots out of next end( for i = m+p:n)
end

end

y=i+1
for p = y:n;
%% CLOSE OUT 1
if((s(p)/Mc(p)-s2(p)/Mc2(p)<spread2)&&(flag==-1)&&(dagger==1))

&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.
&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;the while loop continues....
The output is showing that my indexing i&#8217;s in this for loop are all even numbers so my program is skipping the evaluation of every other data point.
Please help
From: Andy on 6 Aug 2010 12:13
You were receiving help for this problem in another post:

http://www.mathworks.com/matlabcentral/newsreader/view_thread/288672

Please do not duplicate your posts.
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Prev: Evaluate implicit 3d function
Next: Eigenvectors with Identical Eigenvalues Lose orthogonality?