what does odd_flag=1 mean

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Komal Gaikwad
Komal Gaikwad 2018-2-20
编辑： Stephen23 2018-2-20
i tried to find in documentation but couldn't found also what does ii means
odd_flag=1;
for j=1:im_sz(2)
for ii=1:im_sz(1)
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John D'Errico
John D'Errico 2018-2-20
编辑：John D'Errico 2018-2-20
odd_flag = 1
assigns the value 1 to the variable odd_flag.
What it means is probably nothing, since it is apparently just an unused variable. Odds are whoever wrote that code used a variable called odd_flag before, but then changed to code to no longer use it, and forgot to delete that line.
You need to understand that you can name a variable virtually ANYTHING you want. There is nothing special about that choice of name. And if it is unused, then it does noting at all, except waste a few CPU cycles to create it.
Stephen23
Stephen23 2018-2-20
编辑：Stephen23 2018-2-20
"also what does ii means"
Very basic concepts like this are explained very well in the introductory tutorials, which are highly recommended for all beginners:
https://www.mathworks.com/help/matlab/getting-started-with-matlab.html

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