| /*************************************************************************/ |
| /* */ |
| /* Language Technologies Institute */ |
| /* Carnegie Mellon University */ |
| /* Copyright (c) 2001 */ |
| /* All Rights Reserved. */ |
| /* */ |
| /* Permission is hereby granted, free of charge, to use and distribute */ |
| /* this software and its documentation without restriction, including */ |
| /* without limitation the rights to use, copy, modify, merge, publish, */ |
| /* distribute, sublicense, and/or sell copies of this work, and to */ |
| /* permit persons to whom this work is furnished to do so, subject to */ |
| /* the following conditions: */ |
| /* 1. The code must retain the above copyright notice, this list of */ |
| /* conditions and the following disclaimer. */ |
| /* 2. Any modifications must be clearly marked as such. */ |
| /* 3. Original authors' names are not deleted. */ |
| /* 4. The authors' names are not used to endorse or promote products */ |
| /* derived from this software without specific prior written */ |
| /* permission. */ |
| /* */ |
| /* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */ |
| /* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */ |
| /* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */ |
| /* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */ |
| /* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */ |
| /* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */ |
| /* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */ |
| /* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */ |
| /* THIS SOFTWARE. */ |
| /* */ |
| /*************************************************************************/ |
| /* Author: Alan W Black ([email protected]) */ |
| /* Date: November 2001 */ |
| /*************************************************************************/ |
| /* */ |
| /* sufficient statitsics */ |
| /* */ |
| /*************************************************************************/ |
| #ifndef _CST_SS_H__ |
| #define _CST_SS_H__ |
| |
| typedef struct cst_ss_struct { |
| double num_samples; |
| double sum; |
| double sumx; |
| } cst_ss; |
| |
| cst_ss *new_ss(); |
| void delete_ss(cst_ss *ss); |
| void ss_reset(cst_ss *ss); |
| double ss_mean(cst_ss *ss); |
| double ss_variance(cst_ss *ss); |
| double ss_stddev(cst_ss *ss); |
| void ss_cummulate(cst_ss *ss,double a); |
| void ss_cummulate_n(cst_ss *ss,double a, double count); |
| |
| #endif |
