Error in using fillimissing

Hi MATLAB community,

result = fillmissing(matrix, 'movmean', [1 1])
X = normalize(result);
data = X;

I am trying use the fillmissing in the program above em MATLAB 2012b, but showns the follow error message:

Undefined function 'fillmissing' for input arguments of type 'double'.

Could help me?

Thank you very much!

Guilherme

[Star Strider]

The fillmissing function was introduced in R2016b.

[Sean de Wolski]

And normalize() is even newer in R2018a.