How to mean all array?

Hi, im using matlab r2018a

lets say i have array

A = [NaN 1 1; 2 NaN 2; 1 NaN 2; 4 2 2]

how to get mean of all of it?

i need the result is 1.888889

i try using

z = mean(A(:))

but the answer is

z = NaN

Answer 1

[KSSV]

A = [0 1 1; 2 3 2; 1 3 2; 4 2 2] ;
iwant = mean(A(:))

iwant = 1.9167

[sky walker]

thanks for your answer, i change my question. but already find the solution

im using

iwant = mean(A(:),'omitnan')

[KSSV]

You also have the fucntion nanmean.

A = [NaN 1 1; 2 NaN 2; 1 NaN 2; 4 2 2] ;
iwant = nanmean(A(:))

iwant = 1.8889

Answer 2

[Walter Roberson]

format long g
A = [NaN 1 1; 2 NaN 2; 1 NaN 2; 4 2 2]

A = 4×3

NaN 1 1 2 NaN 2 1 NaN 2 4 2 2

mean(A, 'all', 'omitnan')

ans = 
          1.88888888888889

[sky walker]

Thanks, but i already try that before, but im working in matlab R2018a

so thats not working.

but i already find the solution, im using

mean(A(:),'omitnan')