Kentarou Shimatani
action recognizer with theremin
lib.cpp@0:b9ac53c439ed, 2011-09-14 (annotated)
- Committer:
- peccu
- Date:
- Wed Sep 14 13:42:46 2011 +0000
- Revision:
- 0:b9ac53c439ed
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| peccu | 0:b9ac53c439ed | 1 | /* |
| peccu | 0:b9ac53c439ed | 2 | * lib.cpp |
| peccu | 0:b9ac53c439ed | 3 | * Theremi |
| peccu | 0:b9ac53c439ed | 4 | * |
| peccu | 0:b9ac53c439ed | 5 | * Created by peccu on 11/09/12. |
| peccu | 0:b9ac53c439ed | 6 | * Copyright 2011 __MyCompanyName__. All rights reserved. |
| peccu | 0:b9ac53c439ed | 7 | * |
| peccu | 0:b9ac53c439ed | 8 | */ |
| peccu | 0:b9ac53c439ed | 9 | |
| peccu | 0:b9ac53c439ed | 10 | #include "main.h" |
| peccu | 0:b9ac53c439ed | 11 | #include "lib.h" |
| peccu | 0:b9ac53c439ed | 12 | |
| peccu | 0:b9ac53c439ed | 13 | // 配列とかの演算用 |
| peccu | 0:b9ac53c439ed | 14 | |
| peccu | 0:b9ac53c439ed | 15 | // for output |
| peccu | 0:b9ac53c439ed | 16 | // 配列もどきの操作 |
| peccu | 0:b9ac53c439ed | 17 | int *pushCount(int *count,int size,int newcount){ |
| peccu | 0:b9ac53c439ed | 18 | for(int i=0;i<size-1;i++){ |
| peccu | 0:b9ac53c439ed | 19 | *(count+i)=*(count+i+1); |
| peccu | 0:b9ac53c439ed | 20 | } |
| peccu | 0:b9ac53c439ed | 21 | *(count+size-1)=newcount; |
| peccu | 0:b9ac53c439ed | 22 | return count; |
| peccu | 0:b9ac53c439ed | 23 | } |
| peccu | 0:b9ac53c439ed | 24 | |
| peccu | 0:b9ac53c439ed | 25 | // 演算補助 |
| peccu | 0:b9ac53c439ed | 26 | int sum(int *count, int size){ |
| peccu | 0:b9ac53c439ed | 27 | int ret=0; |
| peccu | 0:b9ac53c439ed | 28 | for(int i=0;i<size;i++){ |
| peccu | 0:b9ac53c439ed | 29 | ret+=(*count++); |
| peccu | 0:b9ac53c439ed | 30 | } |
| peccu | 0:b9ac53c439ed | 31 | return ret; |
| peccu | 0:b9ac53c439ed | 32 | } |
| peccu | 0:b9ac53c439ed | 33 | |
| peccu | 0:b9ac53c439ed | 34 | float average(int *data, int size){ |
| peccu | 0:b9ac53c439ed | 35 | float ret=0.0; |
| peccu | 0:b9ac53c439ed | 36 | ret = sum(data,size) / size; |
| peccu | 0:b9ac53c439ed | 37 | return ret; |
| peccu | 0:b9ac53c439ed | 38 | } |
| peccu | 0:b9ac53c439ed | 39 | |
| peccu | 0:b9ac53c439ed | 40 | // 平均がわかってるときの分散 |
| peccu | 0:b9ac53c439ed | 41 | float variance(int *data, float average, int size){ |
| peccu | 0:b9ac53c439ed | 42 | float ret=0.0; |
| peccu | 0:b9ac53c439ed | 43 | for(int i=0;i<size-1;i++){ |
| peccu | 0:b9ac53c439ed | 44 | ret += (*(data+i)-average) * (*(data+i)-average); |
| peccu | 0:b9ac53c439ed | 45 | } |
| peccu | 0:b9ac53c439ed | 46 | ret /= size -1; |
| peccu | 0:b9ac53c439ed | 47 | return ret; |
| peccu | 0:b9ac53c439ed | 48 | } |
| peccu | 0:b9ac53c439ed | 49 | |
| peccu | 0:b9ac53c439ed | 50 | // 平均の計算もする分散 |
| peccu | 0:b9ac53c439ed | 51 | float variance(int *data, int size){ |
| peccu | 0:b9ac53c439ed | 52 | float ret=0.0; |
| peccu | 0:b9ac53c439ed | 53 | float ave=average(data, size); |
| peccu | 0:b9ac53c439ed | 54 | for(int i=0;i<size-1;i++){ |
| peccu | 0:b9ac53c439ed | 55 | ret += (*(data+i)-ave) * (*(data+i)-ave); |
| peccu | 0:b9ac53c439ed | 56 | } |
| peccu | 0:b9ac53c439ed | 57 | ret /= size -1; |
| peccu | 0:b9ac53c439ed | 58 | return ret; |
| peccu | 0:b9ac53c439ed | 59 | } |