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77 lines
2.4 KiB
Plaintext
77 lines
2.4 KiB
Plaintext
NAME
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avg - average (arithmetic) mean of values
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SYNOPSIS
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avg(x_1, x_2, ...)
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TYPES
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x_1, ... arithmetic or list
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return as determined by types of items averaged
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DESCRIPTION
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If there are n non-list arguments x_1, x_2, ..., x_n,
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for which the required additions and division by n are defined,
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avg(x_1, x_2, ..., x_n) returns the value of:
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(x_1 + x_2 + ... + x_n)/n.
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If the x_i are real, the result will be a real number; if the
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x_i are real or complex numbers, the result will be a real or complex
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number. If the x_i are summable matrices the result will be a matrix
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of the same size (e.g. if the x_i are all 3 x 4 matrices with real
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entries, the result will be a 3 x 4 matrix with real entries).
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If an argument x_i is list-valued, e.g. list(y_1, y_2, ...), this
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is treated as contributing y_1, y_2, ... to the list of items to
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be averaged.
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EXAMPLE
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; print avg(1,2,3,4,5), avg(list(1,2,3,4,5)), avg(1,2,list(3,4,5))
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3 3 3
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; mat x[2,2] = {1,2,3,4}
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; mat y[2,2] = {1,2,4,8}
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; avg(x,y)
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mat [2,2] (4 elements, 4 nonzero):
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[0,0] = 1
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[0,1] = 2
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[1,0] = 3.5
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[1,1] = 6
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LIMITS
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The number of arguments is not to exceed 1024.
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LINK LIBRARY
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none
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SEE ALSO
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hmean
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## Copyright (C) 1999-2006 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: 29.4 $
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## @(#) $Id: avg,v 29.4 2006/06/22 23:49:22 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/avg,v $
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##
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## Under source code control: 1994/09/25 20:22:31
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## File existed as early as: 1994
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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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