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58 lines
1.6 KiB
Plaintext
58 lines
1.6 KiB
Plaintext
NAME
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count - count elements of list or matrix satisfying a stated condition
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SYNOPSIS
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count(x, y)
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TYPES
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x list or matrix
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y string
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return integer
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DESCRIPTION
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For count(x, y), y is to be the name of a user-defined function;
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count(x,y) then returns the number of elements of x for which y
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tests as "true".
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EXAMPLE
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; define f(a) = (a < 5)
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; A = list(1,2,7,6,4,8)
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; count(A, "f")
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3
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LIMITS
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none
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LINK LIBRARY
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none
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SEE ALSO
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select, modify
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.3 $
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## @(#) $Id: count,v 29.3 2006/05/07 07:25:46 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/count,v $
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##
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## Under source code control: 1995/07/10 02:09:31
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## File existed as early as: 1995
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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