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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
// 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 [x,k] = %hm_min(varargin)
n = size(varargin)
// One input argument
if n ==1 then
// Retrieve the dimensions
m = varargin(1).dims
// Compute the min of column vector
// varargin(1).entries gives column vector
[x,k] = min(varargin(1).entries)
// check if lhs = 2 and if varargin(1) is vector
if (argn(1) > 1 & (m(length(m)) <> size(varargin(1), "*"))) then
k = ind2sub(m, k(1))
end
else
if n==2 then
d=varargin(2)
// Check if d is a string
if type(d)==10 then
[x,k]=%hm_oriented_min(varargin(1),d)
return
end
end
// if the second input argument is a matrix or hypermatrix
// Obtain column vector
x=varargin(1)(:)
dims=size(varargin(1))
for kk=2:n
sz=size(varargin(kk))
// check if the dim are different
if or(dims<>sz) then
if prod(dims)<>1&prod(sz)<>1 then
error(42)
end
// the first argument is a scalar
if prod(dims)==1 then dims=sz,end
end
// min between hypermatrix and hypermatrix
[x,k]=min(x,varargin(kk)(:))
end
x=hypermat(dims,x)
k=hypermat(dims,k)
end
endfunction
function [x,k]=%hm_oriented_min(m,d)
if d=="m" then
d=find(dims>1,1)
if d==[] then
[x,k1]=max(m.entries)
k=ind2sub(m.dims,k1(1))
return,
end
elseif d=="r" then
d=1
elseif d=="c" then
d=2
end
dims=m.dims;
if type(dims==8) then flag=1; dims=double(dims); else flag=0;end
N=size(dims,"*");
p1=prod(dims(1:d-1));// step for one min
p2=p1*dims(d);//step for beginning of vector to min
ind=(0:p1:p2-1)';// selection for vector to min
deb=(1:p1);
I=ind*ones(deb)+ones(ind)*deb
ind=(0:p2:prod(dims)-1);
I=ones(ind).*.I+ind.*.ones(I)
[x,k]=min(matrix(m.entries(I),dims(d),-1),"r")
dims(d)=1
if d==N then
dims=dims(1:$)
else
dims(d)=1
end
if size(dims,"*")==2 then
if flag==1 then dims=int32(dims);end
x=matrix(x,dims(1),dims(2))
k=matrix(k,dims(1),dims(2))
else
if flag==1 then dims=int32(dims);end
x=hypermat(dims,x)
k=hypermat(dims,matrix(k,-1,1))
end
endfunction
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