I am getting errors that I am using ".*" and "*" wrongly in my matrix multiplications in my code. I am poor at matrix algebra and don’t know when to use each operator.

clear;
clc;
H=[5, -5;
2.5, -2.5;
0, -2.5;
0, -4;
-4, -2.5]

diagW=diag([1, 1, 1, 1, 1]*10^4);
Z=[0.85;
0.8;
0.6;
0.4;
-0.81]
transH=H’;
%Ht=transpose of H;
HtWH=transH*diagW.*H;
HtWZ=transH*diagW.*Z;
X=(inv(HtWH)).*HtWZ;
Zhat=Z.*X;
%Estimation of errors.
ESTofErrors=Z-Zhat;
%Value of the cost function
variance=[0.015, 0.01, 0.005, 0.015, 0.01]
CF=0;
for i=1:5
CF = CF + ((Zhat(i))^2/(variance(i))^2)
end
alpha=0.01;
K=3;
Xka=chi2cdf(0.1, 3);
Xka=11.345;
G=HtWH;
invG=inv(G);
HinvGHt=H.*invG.*Ht;
R=ESTofErrors;
S=R-(H*invG.*transH);
diagS=diag(S);
%Expected value of the cost function.
EVCF=sum(diagS,2);
%Calculating the standardized error
SE=(variance)/sqrt(5);

Errors: Arrays have incompatible sizes for this operation.I am getting errors that I am using ".*" and "*" wrongly in my matrix multiplications in my code. I am poor at matrix algebra and don’t know when to use each operator.

clear;
clc;
H=[5, -5;
2.5, -2.5;
0, -2.5;
0, -4;
-4, -2.5]

diagW=diag([1, 1, 1, 1, 1]*10^4);
Z=[0.85;
0.8;
0.6;
0.4;
-0.81]
transH=H’;
%Ht=transpose of H;
HtWH=transH*diagW.*H;
HtWZ=transH*diagW.*Z;
X=(inv(HtWH)).*HtWZ;
Zhat=Z.*X;
%Estimation of errors.
ESTofErrors=Z-Zhat;
%Value of the cost function
variance=[0.015, 0.01, 0.005, 0.015, 0.01]
CF=0;
for i=1:5
CF = CF + ((Zhat(i))^2/(variance(i))^2)
end
alpha=0.01;
K=3;
Xka=chi2cdf(0.1, 3);
Xka=11.345;
G=HtWH;
invG=inv(G);
HinvGHt=H.*invG.*Ht;
R=ESTofErrors;
S=R-(H*invG.*transH);
diagS=diag(S);
%Expected value of the cost function.
EVCF=sum(diagS,2);
%Calculating the standardized error
SE=(variance)/sqrt(5);

Errors: Arrays have incompatible sizes for this operation. I am getting errors that I am using ".*" and "*" wrongly in my matrix multiplications in my code. I am poor at matrix algebra and don’t know when to use each operator.

clear;
clc;
H=[5, -5;
2.5, -2.5;
0, -2.5;
0, -4;
-4, -2.5]

diagW=diag([1, 1, 1, 1, 1]*10^4);
Z=[0.85;
0.8;
0.6;
0.4;
-0.81]
transH=H’;
%Ht=transpose of H;
HtWH=transH*diagW.*H;
HtWZ=transH*diagW.*Z;
X=(inv(HtWH)).*HtWZ;
Zhat=Z.*X;
%Estimation of errors.
ESTofErrors=Z-Zhat;
%Value of the cost function
variance=[0.015, 0.01, 0.005, 0.015, 0.01]
CF=0;
for i=1:5
CF = CF + ((Zhat(i))^2/(variance(i))^2)
end
alpha=0.01;
K=3;
Xka=chi2cdf(0.1, 3);
Xka=11.345;
G=HtWH;
invG=inv(G);
HinvGHt=H.*invG.*Ht;
R=ESTofErrors;
S=R-(H*invG.*transH);
diagS=diag(S);
%Expected value of the cost function.
EVCF=sum(diagS,2);
%Calculating the standardized error
SE=(variance)/sqrt(5);

Errors: Arrays have incompatible sizes for this operation. matrix multiplication, matrix algebra MATLAB Answers — New Questions

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