i got a error in median

%Train PCA
load Xtest.mat;
%Input data from TE Chemical Process
X=Xtest(1:501,1:2); %2 continuous variable
% find dimension of matrix, n=number of rows, p=number of columns/variables
[n,p] = size(X);
ran = min(size(X,1),size(X,2));
if p>ran
p=ran;
end
c=median(X); %median 
C=repmat(c,n,1);
d=std(X); %standard deviation
D=repmat(d,n,1);
X=(X-C)./D;
% diagonalisation
[Tmat,E,L] = svd(X,0);     
eigmat = E;

The error showing is

Error using tabular/permute (line 215)

Undefined function 'permute' for input arguments of type 'table'.

Error in median (line 186)

x = permute(x, perm);

[Image Analyst]

Attach 'Xtest.mat' - you forgot to attach it.

Answer 1

[Sibi]

X is in table,thats why its not working.

try this .

Xtest=xlsread("Q3Data_TE.xlsx");
X=Xtest(1:501,1:2); 
[n,p] = size(X);
ran = min(size(X,1),size(X,2));
if p>ran
p=ran;
end
c=median(X); %median 
C=repmat(c,n,1);
d=std(X); %standard deviation
D=repmat(d,n,1);
X=(X-C)./D;
% diagonalisation
[Tmat,E,L] = svd(X,0);     
eigmat = E;