obsX= load('training_ind_binaire000_Distanceaucentre_coordonneaucentre_333_U_333M_333C_cube.csv')

% que les observations : 
obs=obsX(:,2:9) 

% dist. uniforme des points : U
U = 1:333

% point proche Milieu cube : M 
M = 334:333+333

% points proches des Coins et dans cube : C 
C = 334+333:333+333+333

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Variance inter :
VinterU = mean(var(obs(U,:)))
VinterU =  0.077

VinterM = mean(var(obs(M,:)))
VinterM =  0.038

VinterC = mean(var(obs(C,:)))
VinterC =  0.123

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Variance intra : 
VintraU = mean(var(obs(U,:)'))
VintraU =  0.086

VintraM = mean(var(obs(M,:)'))
VintraM =  0.042

VintraC = mean(var(obs(C,:)'))
VintraC =  0.139

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Variances totales :
Uob = obs(U,:);    var(Uob(:))
ans =  0.077

Mob = obs(M,:);   var(Mob(:))
ans =  0.038

Cob = obs(C,:);    var(Cob(:))
ans =  0.123