savefile(file,path,format,index)

function savefile(file,path,format,index)

% function savefile saves workspace variable FILE as a formatted matrix FILENAME to disk.

% Input:
%FILE  workspace variable
%PATH   path and filename of saved FILE (output)

%FORMAT    Field Width and Precision Specifications of output 


%INDEX   Conversion characters 
% Conversion characters specify the notation of the output.
% SpecifierDescription:
% c    Single character%dDecimal notation (signed)
% e    Exponential notation (using a lowercase e as in 3.1415e+00)
% E    Exponential notation (using an uppercase E as in 3.1415E+00)
% f    Fixed-point notation
% g    The more compact of e or f , as defined in [2]. Insignificant zeros do not print.
% G    Same as %g, but using an uppercase E
% i    Decimal notation (signed)
% o    Octal notation (unsigned)
% s    String of characters
% u    Decimal notation (unsigned)
% x    Hexadecimal notation (using lowercase letters a-f)
% X    Hexadecimal notation (using uppercase letters A-F)

%example
%file1=rand(3,5);
%savefile (file1,'d:\output.txt',5.2,'f')
%--------------------------------------------------------------------------

fid = fopen (path,'w');  
for i=1:size(file,1);
    for j=1:size(file,2);
   mm=(['%',num2str(format),index]);
   fprintf(fid,mm,file(i,j));
end
fprintf(fid,'\n');
end
fclose(fid);