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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2002-2004 - INRIA - Vincent COUVERT
// Copyright (C) 2012 - Scilab Enterprises - Adeline CARNIS
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function [r,k]=mtlb_max(a,b,c)
// Emulation function for max() Matlab function
[lhs,rhs]=argn(0);
if rhs==2 then
if type(b)==10 then
rhs=1
end
end
if rhs==1 then //max(A)
// One output arg
if lhs==1 then
if ~isreal(a,0) then
if size(a,1)==1|size(a,2)==1 then
[r,k]=max(abs(a))
r=a(k)
else
[r,k]=max(abs(a),"r")
r=[]
for l=1:size(a,2)
r=[r,a(k(l),l)]
end
end
else
if size(a,1)==1|size(a,2)==1 then
r=max(a)
else
r=max(a,"r")
end
end
else
if ~isreal(a,0) then
if size(a,1)==1|size(a,2)==1 then
[r,k]=max(abs(a))
r=a(k)
else
[r,k]=max(abs(a),"r")
r=[]
for l=1:size(a,2)
r=[r,a(k(l),l)]
end
end
else
if size(a,1)==1|size(a,2)==1 then
[r,k]=max(a)
else
[r,k]=max(a,"r")
end
end
end
// max(A,B) A and B have the same size
elseif rhs==2 then
// Only one output arg is possible...
if lhs > 1 then
error(msprintf(gettext("%s: Wrong number of output argument(s): %d expected.\n"),"mtlb_max", 1));
end
// Special case if A==[] and B==[]
if isempty(a) & isempty(b) then
r=[]
return
end
if ~isreal(a)|~isreal(b) then
if ~isreal(a,0) & isreal(b,0) then
[r,k]=max(abs(a),b)
for m=1:size(a,1)
for n=1:size(a,2)
if k(m,n)==1 then
r(m,n)=a(m,n)
end
end
end
elseif isreal(a,0)&~isreal(b,0) then
[r,k]=max(a,abs(b))
for m=1:size(a,1)
for n=1:size(a,2)
if k(m,n)==2 then
r(m,n)=b(m,n)
end
end
end
else
[r,k]=max(abs(a),abs(b))
for m=1:size(a,1)
for n=1:size(a,2)
if k(m,n)==1 then
r(m,n)=a(m,n)
else
r(m,n)=b(m,n)
end
end
end
end
else
r = max(a,b)
end
// max(a,[],num) with num>2 or num is a variable name
elseif rhs==3 then
//If num>number of dims of a
if c>size(size(a),2) then
r=a
k=ones(size(a,1),size(a,2))
else
if c==1 then
c="r"
else
c="c"
end
if isreal(a) then
// a is a complex value
[r,k]=max(a,c)
else
[r,k]=max(abs(a),c)
// Replace values in r by original values of a
if find(size(k)<>1)==[] then //Scalar
r=a(k)
elseif size(k,1)==1 then // Row Vector
r=[]
for l=1:size(k,"*")
r=[r,a(k(l),l)]
end
elseif size(k,2)==1 then // Column Vector
r=[]
for l=1:size(k,"*")
r=[r;a(l,k(l))]
end
else
r=[]
for m=1:size(k,1)
tmp=[]
for n=1:size(k,2)
tmp=[tmp,a(k(m,n),n)];
end
r=[r;tmp]
end
end
end
end
end
endfunction
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