Hi, I am having problem to execute an "if-else" statement in matlab of the foll. eqtn. Xc=sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)*x]/sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)]; Yc=sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)*y]/sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)]; Where: # sum(i:1 to 3)=represents summation where i goes from 1 to 3 # a(i,j): 3x3 matrix[3 6 8; 2 5 6; 9 4 5]; # a(m): middle element of the matrix a(i,j); # h(i,j)={ 1, if a(i,j)>=a(m) & # 0, if a(i,j)<a(m). # [x y]=meshgrid(-1:2/2:+1, -1:2/2:+1). Can anyone implement the foll. eqtn by correctly stating the condition of h(i,j). Thanking You!

How To Execute "if-else" Statement.

Pranjal Pathak

2012 9 3

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2 次查看（30 天）

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Hi,

I am having problem to execute an "if-else" statement in matlab of the foll. eqtn.

    Xc=sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)*x]/sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)];
    Yc=sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)*y]/sum(i:1 to 3)sum(j:1 to 3)[(a(i,j)-a(m))*h(i,j)];

Where:

sum(i:1 to 3)=represents summation where i goes from 1 to 3
a(i,j): 3x3 matrix[3 6 8; 2 5 6; 9 4 5];
a(m): middle element of the matrix a(i,j);
h(i,j)={ 1, if a(i,j)>=a(m) &
0, if a(i,j)<a(m).
[x y]=meshgrid(-1:2/2:+1, -1:2/2:+1).

Can anyone implement the foll. eqtn by correctly stating the condition of h(i,j).

Thanking You!

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Dishant Arora 2012-9-3

you have asked the same question again. http://www.mathworks.in/matlabcentral/answers/47101#answer_57577 didnt it help you out. you tried doing it.?? if you are facing any problem implementing that, u should make a comment there rathar then creating new question.