src/tools/analysis-exp-smoothing.h

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