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annotate scripts/statistics/distributions/empirical_cdf.m @ 3426:f8dde1807dee

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[project @ 2000-01-13 08:40:00 by jwe]
author jwe
date Thu, 13 Jan 2000 08:40:53 +0000
parents e4f4b2d26ee9
children 434790acb067
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1 ## Copyright (C) 1996, 1997 Kurt Hornik
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2 ##
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3 ## This program is free software; you can redistribute it and/or modify
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4 ## it under the terms of the GNU General Public License as published by
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5 ## the Free Software Foundation; either version 2, or (at your option)
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6 ## any later version.
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7 ##
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8 ## This program is distributed in the hope that it will be useful, but
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9 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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11 ## General Public License for more details.
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12 ##
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13 ## You should have received a copy of the GNU General Public License
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14 ## along with this file. If not, write to the Free Software Foundation,
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15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 ## usage: empirical_cdf (X, DATA)
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18 ##
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19 ## For each element of X, compute the cumulative distribution function
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20 ## (CDF) at X of the empirical distribution obtained from the univariate
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21 ## sample DATA.
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23 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at>
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24 ## Description: CDF of the empirical distribution
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25
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26 function cdf = empirical_cdf (X, DATA)
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28 if (! is_vector (DATA))
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29 error ("empirical_cdf: DATA must be a vector");
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30 endif
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31
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32 cdf = discrete_cdf (X, DATA, ones (size (DATA)) / length (DATA));
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34 endfunction