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/*
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/*
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 *  R : A Computer Language for Statistical Data Analysis
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 *  R : A Computer Language for Statistical Data Analysis
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 *  Copyright (C) 1995, 1996, 1997  Robert Gentleman and Ross Ihaka
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 *  Copyright (C) 1995, 1996, 1997  Robert Gentleman and Ross Ihaka
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 *  Copyright (C) 1998--2003	    The R Development Core Team.
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 *  Copyright (C) 1998--2003	    The R Development Core Team.
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 *  Copyright (C) 2003		    The R Foundation
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 *
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *  (at your option) any later version.
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 *  This program is distributed in the hope that it will be useful,
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *  GNU General Public License for more details.
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 *
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  A copy of the GNU General Public License is available via WWW at
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 *  http://www.gnu.org/copyleft/gpl.html.  You can also obtain it by
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 *  along with this program; if not, write to the Free Software
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 *  writing to the Free Software Foundation, Inc., 59 Temple Place,
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 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *  Suite 330, Boston, MA  02111-1307  USA.
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 */
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 */
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#ifdef HAVE_CONFIG_H
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#include <config.h>
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#endif
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#endif
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    int naflag;
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    int naflag;
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    if (!isNumeric(sa) || !isNumeric(sb))
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    if (!isNumeric(sa) || !isNumeric(sb))
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	errorcall(lcall, R_MSG_NONNUM_MATH);
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	errorcall(lcall, R_MSG_NONNUM_MATH);
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    /* for 0-length a we want the attributes of a, not those of b
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    /* for 0-length a we want the attributes of a, not those of b
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       as no recycling will occur */
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       as no recycling will occur */
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#define SETUP_Math2				\
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#define SETUP_Math2				\
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    na = LENGTH(sa);				\
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    na = LENGTH(sa);				\
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    nb = LENGTH(sb);				\
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    nb = LENGTH(sb);				\
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    if ((na == 0) || (nb == 0))	{		\
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    if ((na == 0) || (nb == 0))	{		\