Dealing with NaN Values

Hi everybody,

i need help because i can't understand why my code's output is a NaN vector.

I have a matrix of data (135000x8) with no NaN elements, i checked by

find (data == NaN)

and the results was an empy matrix.

But the output of

mean (data, 1)

is a vector (1x8) of NaN values.

Someone can help me in understanding why ??

p.s. i run the same code for various different data and for them was ok.

Thank you in advance !

Answer 1

[Alan Stevens]

Try

find(isnan(data))

[Giorgia Fusaroli]

Thank you !!

there are almost 200 isnan.

How can i deal with them ?

[Alan Stevens]

Depends what you want to do with the data matrix! You might possibly replace them with zeros, say, or some other number that won't affect what you are going to do with data.