|
|||||
SERIES_G. SERIES_G. SERIES_G. Задача 2.. Решение. ⇐ ПредыдущаяСтр 2 из 2 SERIES_G | Итого за двенадцать месяцев | Скользящая средняя за двенадцать месяцев | Центрированная скользящая средняя | Оценка сезонной компоненты | |
112,0 |
|
|
|
| |
118,0 |
|
|
|
| |
132,0 |
|
|
|
| |
129,0 |
|
|
|
| |
121,0 |
|
|
|
| |
135,0 | 1520,0 | 126,7 |
|
| |
148,0 | 1523,0 | 126,9 | 126,8 | 1,167 | |
148,0 | 1531,0 | 127,6 | 127,3 | 1,163 | |
136,0 | 1540,0 | 128,3 | 128,0 | 1,063 | |
119,0 | 1546,0 | 128,8 | 128,6 | 0,925 | |
104,0 | 1550,0 | 129,2 | 129,0 | 0,806 | |
118,0 | 1564,0 | 130,3 | 129,8 | 0,909 | |
115,0 | 1586,0 | 132,2 | 131,3 | 0,876 | |
126,0 | 1608,0 | 134,0 | 133,1 | 0,947 | |
141,0 | 1630,0 | 135,8 | 134,9 | 1,045 | |
135,0 | 1644,0 | 137,0 | 136,4 | 0,990 | |
125,0 | 1654,0 | 137,8 | 137,4 | 0,910 | |
149,0 | 1676,0 | 139,7 | 138,8 | 1,074 | |
170,0 | 1706,0 | 142,2 | 140,9 | 1,206 | |
170,0 | 1730,0 | 144,2 | 143,2 | 1,187 | |
158,0 | 1767,0 | 147,3 | 145,7 | 1,084 | |
133,0 | 1795,0 | 149,6 | 148,4 | 0,896 | |
114,0 | 1842,0 | 153,5 | 151,5 | 0,752 | |
140,0 | 1871,0 | 155,9 | 154,7 | 0,905 | |
145,0 | 1900,0 | 158,3 | 157,1 | 0,923 | |
150,0 | 1929,0 | 160,8 | 159,5 | 0,940 | |
178,0 | 1955,0 | 162,9 | 161,8 | 1,100 | |
163,0 | 1984,0 | 165,3 | 164,1 | 0,993 | |
172,0 | 2016,0 | 168,0 | 166,7 | 1,032 | |
178,0 | 2042,0 | 170,2 | 169,1 | 1,053 | |
199,0 | 2068,0 | 172,3 | 171,3 | 1,162 | |
199,0 | 2098,0 | 174,8 | 173,6 | 1,146 | |
184,0 | 2113,0 | 176,1 | 175,5 | 1,049 | |
162,0 | 2131,0 | 177,6 | 176,8 | 0,916 | |
146,0 | 2142,0 | 178,5 | 178,0 | 0,820 | |
166,0 | 2182,0 | 181,8 | 180,2 | 0,921 | |
171,0 | 2213,0 | 184,4 | 183,1 | 0,934 | |
180,0 | 2256,0 | 188,0 | 186,2 | 0,967 | |
193,0 | 2281,0 | 190,1 | 189,0 | 1,021 | |
181,0 | 2310,0 | 192,5 | 191,3 | 0,946 | |
183,0 | 2336,0 | 194,7 | 193,6 | 0,945 | |
218,0 | 2364,0 | 197,0 | 195,8 | 1,113 | |
230,0 | 2389,0 | 199,1 | 198,0 | 1,161 | |
242,0 | 2405,0 | 200,4 | 199,8 | 1,212 | |
209,0 | 2448,0 | 204,0 | 202,2 | 1,034 | |
191,0 | 2502,0 | 208,5 | 206,3 | 0,926 | |
172,0 | 2548,0 | 212,3 | 210,4 | 0,817 | |
194,0 | 2573,0 | 214,4 | 213,4 | 0,909 | |
196,0 | 2607,0 | 217,3 | 215,8 | 0,908 | |
196,0 | 2637,0 | 219,8 | 218,5 | 0,897 | |
236,0 | 2665,0 | 222,1 | 220,9 | 1,068 | |
235,0 | 2685,0 | 223,8 | 222,9 | 1,054 | |
229,0 | 2693,0 | 224,4 | 224,1 | 1,022 | |
243,0 | 2700,0 | 225,0 | 224,7 | 1,081 | |
264,0 | 2708,0 | 225,7 | 225,3 | 1,172 | |
272,0 | 2700,0 | 225,0 | 225,3 | 1,207 | |
237,0 | 2699,0 | 224,9 | 225,0 | 1,054 | |
211,0 | 2691,0 | 224,3 | 224,6 | 0,940 | |
180,0 | 2696,0 | 224,7 | 224,5 | 0,802 | |
201,0 | 2717,0 | 226,4 | 225,5 | 0,891 | |
204,0 | 2755,0 | 229,6 | 228,0 | 0,895 | |
188,0 | 2776,0 | 231,3 | 230,5 | 0,816 | |
235,0 | 2798,0 | 233,2 | 232,3 | 1,012 | |
227,0 | 2816,0 | 234,7 | 233,9 | 0,970 | |
234,0 | 2839,0 | 236,6 | 235,6 | 0,993 | |
264,0 | 2867,0 | 238,9 | 237,8 | 1,110 | |
302,0 | 2905,0 | 242,1 | 240,5 | 1,256 | |
293,0 | 2950,0 | 245,8 | 244,0 | 1,201 | |
259,0 | 2982,0 | 248,5 | 247,2 | 1,048 | |
229,0 | 3024,0 | 252,0 | 250,3 | 0,915 | |
203,0 | 3060,0 | 255,0 | 253,5 | 0,801 | |
229,0 | 3111,0 | 259,3 | 257,1 | 0,891 | |
242,0 | 3173,0 | 264,4 | 261,8 | 0,924 | |
233,0 | 3227,0 | 268,9 | 266,7 | 0,874 | |
267,0 | 3280,0 | 273,3 | 271,1 | 0,985 | |
269,0 | 3325,0 | 277,1 | 275,2 | 0,977 | |
270,0 | 3359,0 | 279,9 | 278,5 | 0,969 | |
315,0 | 3408,0 | 284,0 | 282,0 | 1,117 | |
364,0 | 3450,0 | 287,5 | 285,8 | 1,274 | |
347,0 | 3494,0 | 291,2 | 289,3 | 1,199 | |
312,0 | 3544,0 | 295,3 | 293,3 | 1,064 | |
274,0 | 3588,0 | 299,0 | 297,2 | 0,922 | |
237,0 | 3636,0 | 303,0 | 301,0 | 0,787 | |
278,0 | 3695,0 | 307,9 | 305,5 | 0,910 | |
284,0 | 3744,0 | 312,0 | 310,0 | 0,916 | |
277,0 | 3802,0 | 316,8 | 314,4 | 0,881 | |
317,0 | 3845,0 | 320,4 | 318,6 | 0,995 | |
313,0 | 3877,0 | 323,1 | 321,8 | 0,973 | |
318,0 | 3911,0 | 325,9 | 324,5 | 0,980 | |
374,0 | 3939,0 | 328,3 | 327,1 | 1,143 | |
413,0 | 3970,0 | 330,8 | 329,5 | 1,253 | |
405,0 | 3994,0 | 332,8 | 331,8 | 1,220 | |
355,0 | 4033,0 | 336,1 | 334,5 | 1,061 | |
306,0 | 4068,0 | 339,0 | 337,5 | 0,907 | |
271,0 | 4105,0 | 342,1 | 340,5 | 0,796 | |
306,0 | 4153,0 | 346,1 | 344,1 | 0,889 | |
315,0 | 4205,0 | 350,4 | 348,3 | 0,905 | |
301,0 | 4267,0 | 355,6 | 353,0 | 0,853 | |
356,0 | 4316,0 | 359,7 | 357,6 | 0,995 | |
348,0 | 4357,0 | 363,1 | 361,4 | 0,963 | |
355,0 | 4391,0 | 365,9 | 364,5 | 0,974 | |
422,0 | 4421,0 | 368,4 | 367,2 | 1,149 | |
465,0 | 4446,0 | 370,5 | 369,5 | 1,259 | |
467,0 | 4463,0 | 371,9 | 371,2 | 1,258 | |
404,0 | 4469,0 | 372,4 | 372,2 | 1,086 | |
347,0 | 4469,0 | 372,4 | 372,4 | 0,932 | |
305,0 | 4477,0 | 373,1 | 372,8 | 0,818 | |
336,0 | 4490,0 | 374,2 | 373,6 | 0,899 | |
340,0 | 4516,0 | 376,3 | 375,3 | 0,906 | |
318,0 | 4554,0 | 379,5 | 377,9 | 0,841 | |
362,0 | 4554,0 | 379,5 | 379,5 | 0,954 | |
348,0 | 4566,0 | 380,5 | 380,0 | 0,916 | |
363,0 | 4571,0 | 380,9 | 380,7 | 0,953 | |
435,0 | 4572,0 | 381,0 | 381,0 | 1,142 | |
491,0 | 4592,0 | 382,7 | 381,8 | 1,286 | |
505,0 | 4616,0 | 384,7 | 383,7 | 1,316 | |
404,0 | 4660,0 | 388,3 | 386,5 | 1,045 | |
359,0 | 4708,0 | 392,3 | 390,3 | 0,920 | |
310,0 | 4765,0 | 397,1 | 394,7 | 0,785 | |
337,0 | 4802,0 | 400,2 | 398,6 | 0,845 | |
360,0 | 4859,0 | 404,9 | 402,5 | 0,894 | |
342,0 | 4913,0 | 409,4 | 407,2 | 0,840 | |
406,0 | 4972,0 | 414,3 | 411,9 | 0,986 | |
396,0 | 5020,0 | 418,3 | 416,3 | 0,951 | |
420,0 | 5072,0 | 422,7 | 420,5 | 0,999 | |
472,0 | 5140,0 | 428,3 | 425,5 | 1,109 | |
548,0 | 5197,0 | 433,1 | 430,7 | 1,272 | |
559,0 | 5246,0 | 437,2 | 435,1 | 1,285 | |
463,0 | 5259,0 | 438,3 | 437,7 | 1,058 | |
407,0 | 5324,0 | 443,7 | 441,0 | 0,923 | |
362,0 | 5376,0 | 448,0 | 445,8 | 0,812 | |
405,0 | 5439,0 | 453,3 | 450,6 | 0,899 | |
417,0 | 5513,0 | 459,4 | 456,3 | 0,914 | |
391,0 | 5560,0 | 463,3 | 461,4 | 0,847 | |
419,0 | 5605,0 | 467,1 | 465,2 | 0,901 | |
461,0 | 5659,0 | 471,6 | 469,3 | 0,982 | |
472,0 | 5687,0 | 473,9 | 472,8 | 0,998 | |
535,0 | 5714,0 | 476,2 | 475,0 | 1,126 | |
622,0 |
|
|
|
| |
606,0 |
|
|
|
| |
508,0 |
|
|
|
| |
461,0 |
|
|
|
| |
390,0 |
|
|
|
| |
432,0 |
|
|
|
|
Строим график сезонной волны
Используем полученные оценки для расчета значений сезонной компоненты Для этого найдем средние за каждый год оценки сезонной компоненты .
В моделях с сезонной компонентой обычно предполагается, что сезонные воздействия за период взаимопогашаются. В мультипликативной модели это выражается в том, что сумма значений сезонной компоненты по всем периодам должна быть равна числу периодов в цикле. В нашем случае число периодов одного цикла равно 12.
Для данной модели имеем:
Корректирующий коэффициент:
.
Скорректированные значения сезонной компоненты получаются при умножении ее на корректирующий коэффициент .
Построим график сезонной волны
Разделим каждый уровень исходного ряда на соответствующие значения сезонной компоненты. В результате получим величины , которые содержат только тенденцию и случайную компоненту.
месяц, t |
SERIES_G | S | SERIES_G/S |
112,0 | 0,910 | 123,046 | |
118,0 | 0,884 | 133,541 | |
132,0 | 1,007 | 131,035 | |
129,0 | 0,976 | 132,185 | |
121,0 | 0,981 | 123,296 | |
135,0 | 1,113 | 121,318 | |
148,0 | 1,227 | 120,663 | |
148,0 | 1,220 | 121,320 | |
136,0 | 1,060 | 128,242 | |
119,0 | 0,922 | 129,101 | |
104,0 | 0,801 | 129,809 | |
118,0 | 0,899 | 131,283 | |
115,0 | 0,910 | 126,342 | |
126,0 | 0,884 | 142,594 | |
141,0 | 1,007 | 139,969 | |
135,0 | 0,976 | 138,333 | |
125,0 | 0,981 | 127,372 | |
149,0 | 1,113 | 133,899 | |
170,0 | 1,227 | 138,600 | |
170,0 | 1,220 | 139,354 | |
158,0 | 1,060 | 148,987 | |
133,0 | 0,922 | 144,290 | |
114,0 | 0,801 | 142,290 | |
140,0 | 0,899 | 155,759 | |
145,0 | 0,910 | 159,300 | |
150,0 | 0,884 | 169,755 | |
178,0 | 1,007 | 176,698 | |
163,0 | 0,976 | 167,024 | |
172,0 | 0,981 | 175,264 | |
178,0 | 1,113 | 159,960 | |
199,0 | 1,227 | 162,243 | |
199,0 | 1,220 | 163,127 | |
184,0 | 1,060 | 173,504 | |
162,0 | 0,922 | 175,751 | |
146,0 | 0,801 | 182,232 | |
166,0 | 0,899 | 184,686 | |
171,0 | 0,910 | 187,865 | |
180,0 | 0,884 | 203,706 | |
193,0 | 1,007 | 191,589 | |
181,0 | 0,976 | 185,469 | |
183,0 | 0,981 | 186,472 | |
218,0 | 1,113 | 195,906 | |
230,0 | 1,227 | 187,517 | |
242,0 | 1,220 | 198,375 | |
209,0 | 1,060 | 197,078 | |
191,0 | 0,922 | 207,213 | |
172,0 | 0,801 | 214,684 | |
194,0 | 0,899 | 215,837 | |
196,0 | 0,910 | 215,330 | |
196,0 | 0,884 | 221,813 | |
236,0 | 1,007 | 234,274 | |
235,0 | 0,976 | 240,802 | |
229,0 | 0,981 | 233,345 | |
243,0 | 1,113 | 218,373 | |
264,0 | 1,227 | 215,237 | |
272,0 | 1,220 | 222,967 | |
237,0 | 1,060 | 223,481 | |
211,0 | 0,922 | 228,911 | |
180,0 | 0,801 | 224,669 | |
201,0 | 0,899 | 223,625 | |
204,0 | 0,910 | 224,119 | |
188,0 | 0,884 | 212,760 | |
235,0 | 1,007 | 233,282 | |
227,0 | 0,976 | 232,604 | |
234,0 | 0,981 | 238,440 | |
264,0 | 1,113 | 237,245 | |
302,0 | 1,227 | 246,218 | |
293,0 | 1,220 | 240,181 | |
259,0 | 1,060 | 244,226 | |
229,0 | 0,922 | 248,439 | |
203,0 | 0,801 | 253,377 | |
229,0 | 0,899 | 254,777 | |
242,0 | 0,910 | 265,867 | |
233,0 | 0,884 | 263,686 | |
267,0 | 1,007 | 265,048 | |
269,0 | 0,976 | 275,641 | |
270,0 | 0,981 | 275,123 | |
315,0 | 1,113 | 283,076 | |
364,0 | 1,227 | 296,766 | |
347,0 | 1,220 | 284,447 | |
312,0 | 1,060 | 294,203 | |
274,0 | 0,922 | 297,258 | |
237,0 | 0,801 | 295,814 | |
278,0 | 0,899 | 309,293 | |
284,0 | 0,910 | 312,009 | |
277,0 | 0,884 | 313,481 | |
317,0 | 1,007 | 314,682 | |
313,0 | 0,976 | 320,728 | |
318,0 | 0,981 | 324,034 | |
374,0 | 1,113 | 336,096 | |
413,0 | 1,227 | 336,715 | |
405,0 | 1,220 | 331,991 | |
355,0 | 1,060 | 334,750 | |
306,0 | 0,922 | 331,975 | |
271,0 | 0,801 | 338,252 | |
306,0 | 0,899 | 340,445 | |
315,0 | 0,910 | 346,066 | |
301,0 | 0,884 | 340,642 | |
356,0 | 1,007 | 353,397 | |
348,0 | 0,976 | 356,592 | |
355,0 | 0,981 | 361,736 | |
422,0 | 1,113 | 379,232 | |
465,0 | 1,227 | 379,110 | |
467,0 | 1,220 | 382,815 | |
404,0 | 1,060 | 380,955 | |
347,0 | 0,922 | 376,455 | |
305,0 | 0,801 | 380,689 | |
336,0 | 0,899 | 373,822 | |
340,0 | 0,910 | 373,532 | |
318,0 | 0,884 | 359,881 | |
362,0 | 1,007 | 359,353 | |
348,0 | 0,976 | 356,592 | |
363,0 | 0,981 | 369,888 | |
435,0 | 1,113 | 390,914 | |
491,0 | 1,227 | 400,308 | |
505,0 | 1,220 | 413,965 | |
404,0 | 1,060 | 380,955 | |
359,0 | 0,922 | 389,473 | |
310,0 | 0,801 | 386,930 | |
337,0 | 0,899 | 374,934 | |
360,0 | 0,910 | 395,504 | |
342,0 | 0,884 | 387,042 | |
406,0 | 1,007 | 403,031 | |
396,0 | 0,976 | 405,777 | |
420,0 | 0,981 | 427,970 | |
472,0 | 1,113 | 424,164 | |
548,0 | 1,227 | 446,780 | |
559,0 | 1,220 | 458,230 | |
463,0 | 1,060 | 436,590 | |
407,0 | 0,922 | 441,548 | |
362,0 | 0,801 | 451,835 | |
405,0 | 0,899 | 450,589 | |
417,0 | 0,910 | 458,126 | |
391,0 | 0,884 | 442,495 | |
419,0 | 1,007 | 415,936 | |
461,0 | 0,976 | 472,382 | |
472,0 | 0,981 | 480,956 | |
535,0 | 1,113 | 480,780 | |
622,0 | 1,227 | 507,111 | |
606,0 | 1,220 | 496,758 | |
508,0 | 1,060 | 479,023 | |
461,0 | 0,922 | 500,132 | |
390,0 | 0,801 | 486,783 | |
432,0 | 0,899 | 480,628 |
Определим компоненту в мультипликативной модели. Для этого воспользуемся возможностью построения на графике тренда. Строим различные модели тренда
Наибольшую точность апроксимации дает линейная модель (R2=0,9773)
Определим расчетные значения по уравнению тренда и значения случайной компоненты
месяц, t |
SERIES_G | S | SERIES_G/S | T | T*S | E |
112,0 | 0,910 | 123,046 | 90,8854 | 82,72665 | 29,3 | |
118,0 | 0,884 | 133,541 | 93,5318 | 82,64707 | 35,4 | |
132,0 | 1,007 | 131,035 | 96,1782 | 96,88668 | 35,1 | |
129,0 | 0,976 | 132,185 | 98,8246 | 96,44352 | 32,6 | |
121,0 | 0,981 | 123,296 | 101,471 | 99,58141 | 21,4 | |
135,0 | 1,113 | 121,318 | 104,1174 | 115,8593 | 19,1 | |
148,0 | 1,227 | 120,663 | 106,7638 | 130,9517 | 17,0 | |
148,0 | 1,220 | 121,320 | 109,4102 | 133,4707 | 14,5 | |
136,0 | 1,060 | 128,242 | 112,0566 | 118,8351 | 17,2 | |
119,0 | 0,922 | 129,101 | 114,703 | 105,7283 | 13,3 | |
104,0 | 0,801 | 129,809 | 117,3494 | 94,01777 | 10,0 | |
118,0 | 0,899 | 131,283 | 119,9958 | 107,8552 | 10,1 | |
115,0 | 0,910 | 126,342 | 122,6422 | 111,6327 | 3,4 | |
126,0 | 0,884 | 142,594 | 125,2886 | 110,7082 | 15,3 | |
141,0 | 1,007 | 139,969 | 127,935 | 128,8774 | 12,1 | |
135,0 | 0,976 | 138,333 | 130,5814 | 127,4352 | 7,6 | |
125,0 | 0,981 | 127,372 | 133,2278 | 130,7468 | -5,7 | |
149,0 | 1,113 | 133,899 | 135,8742 | 151,1975 | -2,2 | |
170,0 | 1,227 | 138,600 | 138,5206 | 169,9032 | 0,1 | |
170,0 | 1,220 | 139,354 | 141,167 | 172,2112 | -2,2 | |
158,0 | 1,060 | 148,987 | 143,8134 | 152,513 | 5,5 | |
133,0 | 0,922 | 144,290 | 146,4598 | 135,0004 | -2,0 | |
114,0 | 0,801 | 142,290 | 149,1062 | 119,4606 | -5,5 | |
140,0 | 0,899 | 155,759 | 151,7526 | 136,3989 | 3,6 | |
145,0 | 0,910 | 159,300 | 154,399 | 140,5387 | 4,5 | |
150,0 | 0,884 | 169,755 | 157,0454 | 138,7693 | 11,2 | |
178,0 | 1,007 | 176,698 | 159,6918 | 160,8681 | 17,1 | |
163,0 | 0,976 | 167,024 | 16
|
|||
|