Support added for diff, norm functions

1 files changed, 39 insertions, 0 deletions

diff --git a/macros/FunctionAnnotation/FA_SZ_DIFF.sci b/macros/FunctionAnnotation/FA_SZ_DIFF.sci
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index 0000000..df18310
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+++ b/macros/FunctionAnnotation/FA_SZ_DIFF.sci
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+// Copyright (C) 2016 - IIT Bombay - FOSSEE
+//
+// 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-en.txt
+// Author: Siddhesh Wani
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+//This fucntion calulates size of output depending upon input
+function outsize = FA_SZ_DIFF(in1size, in2val, in3val)
+	in1size = string(in1size);
+	in1row = eval(in1size(1));
+	in1col = eval(in1size(2));
+	in2val = string(in2val);
+	in2num = eval(in2val);
+	in3num = eval(in3val);
+
+if(in3num == 0)
+	if((in1row == 1) & (in1col <> 1))  //input is row vector
+		outsize(1) = '1';
+		outsize(2) = string (in1col - in2num);
+	elseif((in1col == 1) & (in1row <> 1)) //input is column vector
+		outsize(1) = string(in1row - in2num);
+		outsize(2) = '1';
+	else // input is matrix. output is a column matrix
+		outsize(1) = string((in1row * in1col)- in2num);
+		outsize(2) = '1';
+	end
+elseif (in3num == 1) //Difference along rows
+	outsize(1) = string(in1row - in2num);
+	outsize(2) = string(in1col);
+elseif (in3num == 2) //Difference along columns
+	outsize(1) = string(in1row);
+	outsize(2) = string(in1col - in2num);
+end
+endfunction
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