src/tools/analysis-exp-smoothing.h

   1 /* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * analysis-histogram.h:
   4  *
   5  * This is a complete reimplementation of the exponential smoothing tool in 2008
   6  *
   7  * Author:
   8  *   Andreas J. Guelzow  <aguelzow@pyrshep.ca>
   9  *
  10  * (C) Copyright 2008 by Andreas J. Guelzow  <aguelzow@pyrshep.ca>
  11  *
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, see <https://www.gnu.org/licenses/>.
  25  */
  26
  27
  28 #ifndef ANALYSIS_EXP_SMOOTHING_H
  29 #define ANALYSIS_EXP_SMOOTHING_H
  30
  31 #include "gnumeric.h"
  32 #include "numbers.h"
  33 #include <tools/dao.h>
  34 #include "tools.h"
  35 #include "analysis-tools.h"
  36
  37 typedef enum {
  38         exp_smoothing_type_ses_h = 0,
  39         exp_smoothing_type_ses_r,
  40         exp_smoothing_type_des,
  41         exp_smoothing_type_ates,
  42         exp_smoothing_type_mtes
  43 } exponential_smoothing_type_t;
  44
  45 typedef struct {
  46         analysis_tools_data_generic_t base;
  47         gnm_float damp_fact;
  48         gnm_float g_damp_fact;
  49         gnm_float s_damp_fact;
  50         int s_period;
  51         int std_error_flag;
  52         int df;
  53         gboolean show_graph;
  54         exponential_smoothing_type_t es_type;
  55 } analysis_tools_data_exponential_smoothing_t;
  56
  57 gboolean analysis_tool_exponential_smoothing_engine (GOCmdContext *gcc, data_analysis_output_t *dao,
  58                                                      gpointer specs,
  59                                                      analysis_tool_engine_t selector,
  60                                                      gpointer result);
  61
  62
  63 #endif