współczynnik błąd standardowy t-Studenta wartość p |
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const 2469,93 148,006 16,69 1,47e-025 *** |
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time 25,2661 3,67536 6,874 2,54e-09 *** |
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Średn.aryt.zm.zależnej 3354,246 Odch.stand.zm.zależnej 788,1810 |
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Suma kwadratów reszt 24771299 Błąd standardowy reszt 608,0468 |
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Błąd standardowy reszt 608,0468 |
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Wsp. determ. R-kwadrat 0,413608 Skorygowany R-kwadrat 0,404856 |
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F(1, 67) 47,25805 Wartość p dla testu F 2,54e-09 |
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608,0468 |
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Logarytm wiarygodności -539,1994 Kryt. inform. Akaike'a 1082,399 |
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Kryt. bayes. Schwarza 1086,867 Kryt. Hannana-Quinna 1084,171 |
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Autokorel.reszt - rho1 0,821038 Stat. Durbina-Watsona 0,350434 |
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współczynnik błąd standardowy t-Studenta wartość p |
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PODPUNKT A |
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const 2067,73 218,216 9,476 6,27e-014 *** |
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F= |
1,07378574913341 |
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time 59,2555 14,3859 4,119 0,0001 *** |
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F*= |
1,50182270261335 |
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sq_time -0,485564 0,199168 -2,438 0,0175 ** |
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Średn.aryt.zm.zależnej 3354,246 Odch.stand.zm.zależnej 788,1810 |
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Suma kwadratów reszt 22724812 Błąd standardowy reszt 586,7839 |
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Wsp. determ. R-kwadrat 0,462053 Skorygowany R-kwadrat 0,445752 |
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F(2, 66) 28,34433 Wartość p dla testu F 1,30e-09 |
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Błąd standardowy reszt 586,7839 |
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Logarytm wiarygodności -536,2245 Kryt. inform. Akaike'a 1078,449 |
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Kryt. bayes. Schwarza 1085,151 Kryt. Hannana-Quinna 1081,108 |
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586,7839 |
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Autokorel.reszt - rho1 0,814262 Stat. Durbina-Watsona 0,382471 |
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PODPUNKT B |
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współczynnik błąd standardowy t-Studenta wartość p |
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--------------------------------------------------------------- |
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const 2556,49 83,0603 30,78 8,85e-037 *** |
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time 22,7169 2,06445 11,00 1,27e-015 *** |
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M1 -554,544 133,149 -4,165 0,0001 *** |
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M2 -771,094 133,037 -5,796 3,26e-07 *** |
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M3 -617,811 132,957 -4,647 2,09e-05 *** |
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STATYSTYKI T-STUDENTA (tylko wartości bezwzględne) WIĘKSZE OD 2 |
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M4 -254,694 132,909 -1,916 0,0604 * |
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lub licba gwiazdek większa od 1) |
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M5 90,0889 132,893 0,6779 0,5006 |
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M6 222,705 132,909 1,676 0,0994 * |
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Wniosek: sezonowość występuję, bo przynajmniej jeden parametr jest istotny |
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M7 768,155 132,957 5,777 3,49e-07 *** |
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M8 800,938 133,037 6,020 1,41e-07 *** |
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M9 500,388 133,149 3,758 0,0004 *** |
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M10 261,939 144,434 1,814 0,0751 * |
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M11 -39,9778 144,419 -0,2768 0,7829 |
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Średn.aryt.zm.zależnej 3354,246 Odch.stand.zm.zależnej 788,1810 |
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Suma kwadratów reszt 6444055 Błąd standardowy reszt 339,2233 |
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Wsp. determ. R-kwadrat 0,847455 Skorygowany R-kwadrat 0,814767 |
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F(12, 56) 25,92536 Wartość p dla testu F 1,46e-18 |
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Logarytm wiarygodności -492,7442 Kryt. inform. Akaike'a 1011,488 |
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Kryt. bayes. Schwarza 1040,532 Kryt. Hannana-Quinna 1023,011 |
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Autokorel.reszt - rho1 0,788161 Stat. Durbina-Watsona 0,425210 |
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Wyłączając stałą, największa wartość p jest dla zmiennej 26 (M11) |
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Podpunkty c, d oraz e |
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St |
Prognoza |
VT |
VT* |
dT |
dT* |
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dolna granica |
górna granica |
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1965:10:00 |
4209 |
4408,61 |
378,96 |
8,59590664631256 |
-199,61 |
4,74245664053219 |
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-3649,46 |
5167,76 |
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1965:11:00 |
3928 |
4129,41 |
378,96 |
9,17709793893074 |
-201,41 |
5,12754582484725 |
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-3370,26 |
4888,56 |
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1965:12:00 |
3663 |
3786,01 |
378,96 |
10,0094822781768 |
-123,01 |
3,35817635817636 |
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-3026,86 |
4545,16 |
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Miary dokładności prognoz ex post |
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Średni błąd predykcji ME = -174,67 |
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Błąd średniokwadratowy MSE = 31847 |
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Pierwiastek błędu średniokwadr. RMSE = 178,46 |
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Średni błąd absolutny MAE = 174,67 |
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Średni błąd procentowy MPE = -4,4093 |
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Średni absolutny błąd procentowy MAPE = 4,4093 |
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Współczynnik Theila (w procentach) I = 0,60253 |
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Udział obciążoności predykc. I1^2/I^2 = 0,95807 |
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Udział niedost.elastyczności I2^2/I^2 = 0,032841 |
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Udział niezgodności kierunku I3^2/I^2 = 0,009087 |
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