Writing a mixed matrix of integers and strings to .csv in Matlab - matlab

Question

Perhaps this question has been answered before but I can't seem to find any good documentation on it. So my problem is the following:
Suppose I have two vectors of the same length in Matlab
x = [1;2;3];
and
y = ['A';'B';'C'];
Basically I would like to create the matrix {x,y} (ie 3 rows, 2 columns) and then write it to a .csv file. So in the end I'd like to see a .csv file like
1,A
2,B
3,C
This is just a mocked-up example but really I have 75 columns with each being either a column of strings or numerics. Any suggestions are greatly appreciated!

Answer 1

Actually here is the solution
http://www.mathworks.com/help/matlab/import_export/write-to-delimited-data-files.html#br2ypq2-1
This works much simpler.

Answer 2

If you sort your data into a suitable cell
A = cell(3,2);
A{1,1} = 1;
A{2,1} = 2;
A{3,1} = 3;
A{1,2} = 'A';
A{2,2} = 'B';
A{3,2} = 'C';
you may then call this function:
cell2csv(filename,A)
function cell2csv(filename,cellArray,delimiter)
% Writes cell array content into a *.csv file.
%
% CELL2CSV(filename,cellArray,delimiter)
%
% filename = Name of the file to save. [ i.e. 'text.csv' ]
% cellarray = Name of the Cell Array where the data is in
% delimiter = seperating sign, normally:',' (default)
%
% by Sylvain Fiedler, KA, 2004
% modified by Rob Kohr, Rutgers, 2005 - changed to english and fixed delimiter
if nargin<3
delimiter = ',';
end
datei = fopen(filename,'w');
for z=1:size(cellArray,1)
for s=1:size(cellArray,2)
var = eval(['cellArray{z,s}']);
if size(var,1) == 0
var = '';
end
if isnumeric(var) == 1
var = num2str(var);
end
fprintf(datei,var);
if s ~= size(cellArray,2)
fprintf(datei,[delimiter]);
end
end
fprintf(datei,'\n');
end
fclose(datei);