src/math/np.h

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2008, 2009 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #ifndef __NP_H__
  18 #define __NP_H__
  19
  20 #include "order-stats.h"
  21
  22 struct casewriter;
  23
  24 enum
  25   {
  26     NP_IDX_Y = 0,
  27     NP_IDX_NS,
  28     NP_IDX_DNS,
  29     n_NP_IDX
  30   };
  31
  32 struct np
  33 {
  34   struct order_stats parent;
  35
  36   double n;
  37   double mean;
  38   double stddev;
  39
  40   double prev_cc;
  41
  42   double ns_min;
  43   double ns_max;
  44
  45   double dns_min;
  46   double dns_max;
  47
  48   double y_min;
  49   double y_max;
  50
  51   struct casewriter *writer;
  52 };
  53
  54
  55 struct np * np_create (double n, double mean, double var);
  56
  57 #endif