MATLAB: Reading Workspace variable into csv file

Question

I got above 22 side bands output from 3D DWT, which are represented in the form of matrix. I need to read this into the csv file. Can anyone help me out???

Answer 1

The most important thing to do first is to reshape the data to a 2D array. Then we can use the writematrix function as normal.

WT.dec{1,1}=rand(17,19,17);%generate random data
d=WT.dec{1, 1};%store in other variable for shorter syntax
%option 1: 17x323
d1=reshape(d,size(d,1),[]);
%option 2: 289x19
d2=mat2cell(d,size(d,1),size(d,2),ones(1,size(d,3)));
d2=cell2mat(d2(:));
filename='d1.csv';
writematrix(d1,filename)