Apply Mann-Kendall Test on a matrix

Hello friends, me again

I have the code below for calcute Mann-Kendall test. this code only works for a vector but i would like to apply it on a matrix with 40*5260

when i try to do it for an example like a 40*10 i don't get error but only give me one H nad p-value, rather than 10 H, p-value.

sorry it might be simple but i'm not good in Matlab yet

could you please help.

thanks in advance

function[H,p_value]=Mann_Kendall(V,alpha) %% alpha can be 0.05

V=reshape(V,size(V),1); 
alpha = alpha/2; %
n=length(V); 
i=0; j=0; S=0; 
for i=1:n-1
   for j= i+1:n 
      S= S + sign(V(j)-V(i)); 
   end
end
VarS=(n*(n-1)*(2*n+5))/18;
StdS=sqrt(VarS); 
%%%% Note: ties are not considered 
if S >= 0
   Z=((S-1)/StdS)*(S~=0);
else
   Z=(S+1)/StdS;
end
p_value=2*(1-normcdf(abs(Z),0,1)); %% Two-tailed test 
pz=norminv(1-alpha,0,1); 
H=abs(Z)>pz; %% 
return