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Help me understand Matlab code syntax

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Code #1:

R_Freq1(R_Freq1>0) = +1;
R_Freq1(R_Freq1<0) = 0;


Code # 2:
if (R_Freq1>0)
R_Freq1=+1;
else if (R_Freq1<0)
R_Freq=0;
end

Do the above written code mean the same thing?
 

Re: Help in Matlab code!

is the R_Freq1 is a counter?
 

Re: Help in Matlab code!

if (R_Freq1>0)
R_Freq1=+1;
else
R_Freq1=0;
end
 

Re: Help in Matlab code!

No, code #1 and code #2 are different. The first one is referred to an array, the second one to a single variable.

In code #1 all the array is swept and if the cell content is > 0 the this value is substituted by +1, while if it is < 0 it is substituted by 0.

Example if at the beginning:

R_Freq1 = [-1 3 -5 7 -2 -8 4 9 -3]

at the end of code #1 the result will be:

R_Freq1 = [0 1 0 1 0 0 1 1 0]

the code #2 do the same work but applied to a single variable, not to an array.
 
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