%% Write and Append Data to File
% Create two arrays of sample numeric data.

M = magic(5);
N = magic(3);

%
% Export matrix M to a file and use whitespace as the delimiter.

dlmwrite('myFile.txt',M,'delimiter',' ');

%
% Append matrix N to the file, offset from the existing data by one row. Then, view the file.

dlmwrite('myFile.txt',N,'-append',...
'delimiter',' ','roffset',1)
type('myFile.txt')

%
% Read the data in 'myFile.txt' using dlmread.

dlmread('myFile.txt')

% When dlmread reads the two matrices from the file, it pads the smaller matrix with zeros.
% Copyright 2012 The MathWorks, Inc.