[SOLVED] MatLab help: NaN - What am I doing wrong?

[bluegreentom]

if x==NaN
x=0;
end

What am I doing wrong???


(first post here so pardon if this thread is in the wrong place)

 

[zorro]

Re: MatLab help: NaN..............

Hi,

Logical operators (like "==") involving NaN return always FALSE, except "~=".
This is because as a NaN is not a number it can not be equal to anything.
Use "isnan" function instead:

if isnan(x)
x=0;
end

Regards

Z

 

[bluegreentom]

Re: MatLab help: NaN..............

Thank you very much.
I need to do a lot of work to make the change, but at least now I understand.