% Copyright (C) 2001 Michel Juillard
%
function ftest (s1,s2)

global nvx nvy x y lag1

if size(s1,1) ~= 2
	error ('Spécifiez deux fichiers pour la comparaison.') ;
end

for i = 1:2
	if ~ isempty(find(abs(s1(i,:)) == 46))
		error ('Entrez les noms de fichiers sans extensions.') ;
	end
end

s1 = [s1 [' ';' ']] ;
file1 = [s1(1,1:min(find(abs(s1(1,:)) == 32))-1) '.BIN'] ;
file2 = [s1(2,1:min(find(abs(s1(2,:)) == 32))-1) '.BIN'] ;

fid=fopen(file1,'r') ;
n1 = fread(fid,1,'int') ;
n2 = fread(fid,1,'int') ;
n3 = fread(fid,1,'int') ;
lag1 = fread(fid,4,'int') ;
nvx = fread(fid,[n1,n3],'int') ;
x = fread(fid,[n1,n2],'float64') ;
fclose(fid) ;
nvx = setstr(nvx) ;

fid=fopen(file2,'r') ;
n1 = fread(fid,1,'int') ;
n2 = fread(fid,1,'int') ;
n3 = fread(fid,1,'int') ;
lag2 = fread(fid,4,'int') ;
nvy = fread(fid,[n1,n3],'int') ;
y = fread(fid,[n1,n2],'float64') ;
fclose(fid) ;
nvy = setstr(nvy) ;

if size(x,1) ~= size(y,1)
	error ('FTEST: The two files don''t have the same number of variables.');
end

for i = 1:size(x,1)
	if ~ strcmp(nvx(i,:),nvy(i,:))
		error ('FTEST: The two files don''t have the same  variables.') ;	
	end
end

if nnz(lag1 - lag2) > 0
	error ('FTEST: Leads and lags aren''t the same in both files.') ;
end

j = zeros(size(s2,1),1);
for i=1:size(s2,1)
	k = strmatch(s2(i,:),nvx,'exact') ;
	if isempty(k)
	  t = ['FTEST: Variable ' s2(i) 'doesn''t exist'] ;
	  error (t) ;
	else
	  j(i) =k;
	end
end

y = y(j,:) ;
x = x(j,:) ;

%06/18/01 MJ replaced beastr by strmatch