How to count in nested if statement in matlab? -


i want increment count , display value in message box. i'm using nested if statement. code

if sum( abs( f1(:) - f2(:))) == 0.0        = + 1; elseif sum(abs(f2(:) - f3(:))) == 0.0        = i+ 1; elseif sum(abs(f3(:) - f4(:))) == 0.0        = + 1; else         = 1;    end  h = msgbox('perfect  = %d',i);

here f1,f2,f3, , f4 contains difference between 2 images in float. have declared i = 0; before if statement. still i'm not able see message box in output. tried disp() function too, showing else part i.e, i = 1

any suggestions?

thanks in advance!

each mutually exclusive branch of decision tree either i=i+1 or i=1. no matter 1 runs, if i 0 before, 1 afterwards.

i did not understand want, code written checks several conditions , same thing no matter what, can't right.

edit: try this

if sum( abs( f1(:) - f2(:))) == 0.0    = + 1; end if sum(abs(f2(:) - f3(:))) == 0.0    = i+ 1; end if sum(abs(f3(:) - f4(:))) == 0.0    = + 1; end  h = msgbox('perfect  = %d',i);

this give count of number of matches, 0 three. conditions checked independently, before second 1 checked if first 1 false.


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