Getting Error in saving values aftering filtering

matrix

 load matrix
 Fs=256;
 Fn = Fs/2; % Nyquist Frequency
 Wp = [2 95]/Fn; % Filter Passband (Normalised)
 Ws = Wp .* [0.5 1.2]; % Filter Stopband (Normalised)
 Rp=1; % Passband ripple
 Rs= 50; % Stopband ripple

 [n,Ws] = cheb2ord(Wp,Ws,Rp,Rs); % n is minimum order and Ws is cut-off freq
 [b,a] = cheby2(n, Rs, Ws) ;

 for k= 1:size(splitedParts,2)
 y(k)= filtfilt(b,a,splitedParts (:,k) ) ; 
 end

There is a matrix of 1024 x 1953 order. I want to save matrix after applying filter in variable 'y'. It should be like if column 1 of splitedParts is filtered, it must be save in column 1 of variable 'y', filtered column2 values must be save in column 2 of variable and so on.

Error I was facing:

In an assignment A(I) = B, the number of elements in B and I must be the same.

Answer 1

[Star Strider]

Since ‘splitedParts’ is a column vector in each pass, ‘y’ will also be.

Providing (assuming) all are the same length, this will work:

y(:,k)= filtfilt(b,a,splitedParts (:,k) ) ;

an alternative is a cell array:

y{k}= filtfilt(b,a,splitedParts (:,k) ) ;

Note the curly brackets ‘{}’ in the cell array version.