Subscript Error Plz help

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Fred
Fred 2012-10-3
Pk is a 1*5 , and LandaMean is 1*37 matrice
b=1
m=6
for k=1:(n-(2*b)-m+1);
Pk = LandaMean(k+1:k+m-1);
for i=k+1:k+m-1
if sum(abs(Pk(i)-LandaMean(k)))<= (2*s);
LandaU =(1/m)*sum(LandaMean(k:k+m-1));
break
else
end
end
end
But I get this error:
Subscript indices must either be real positive integers or logicals.
Error in TailDep (line 50)
if sum(abs(Pk(i)-LandaMean(k)))<= (2*s);
Thank you
  1 个评论
Fred
Fred 2012-10-4
Thank you, I realized that I had used sum in other lines as a parameter so it was the making problem :)

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采纳的回答

Razvan
Razvan 2012-10-3
Just look at line 50 and what vectors are there. Probably there is something like
vector(negative_number)
So check why the index is negative...

更多回答（1 个）

Image Analyst
Image Analyst 2012-10-3
编辑：Image Analyst 2012-10-3
What is n and s? Whatever they are, they make either i or k negative or zero.
I guessed for n and s and ran this code and had no error whatsoever:
Pk = rand(1, 5);
LandaMean = rand(1, 37);
b=1;
m=6
n = 9 % Total guess
s = 10 % Total guess
for k=1:(n-(2*b)-m+1);
Pk = LandaMean(k+1:k+m-1);
for i=k+1:k+m-1
if sum(abs(Pk(i)-LandaMean(k)))<= (2*s);
LandaU =(1/m)*sum(LandaMean(k:k+m-1));
break;
else
end
end
end
Do you know how to step through code with the debugger to inspect variables?
  3 个评论
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Fred
Fred 2012-10-3
Actually I found where is the problem but I don't know what should I do? the inside of sum becomes around 0.15 and it assumes that 0.15 is an index for sum!! but sum is a function here!
Walter Roberson
Walter Roberson 2012-10-3
Are you sure that you did not accidentally create a variable with the name "sum" ? Check with
whos sum

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