. - : , . :
(2.15) |
ao, a1, a2 :
(254) |
, . 6 , . .
52
() | () | () | |
1,5 | |||
2.1 | |||
2.7 | |||
3.2 | |||
3.4 | |||
3.6 | |||
3,7 | |||
4,0 | |||
3.7 |
() (x1) (x2). EXCEL 7.
53
R | 0,997558 | ||||
R- | 0,995121 | ||||
R- | 0,993495 | ||||
50,84286 | |||||
df | SS | MS | F | F | |
611,9239 | 1,1612E-07 | ||||
15509,98 | 2584,996 | ||||
t- | P- | 95% | |||
Y- | -187,141 | 77,17245 | -2,42498 | 0,051513 | -375,97561 |
X 1 | 0,071995 | 0,004463 | 16,13289 | 3,61E-06 | 0,06107576 |
X 2 | 343,0222 | 29,40592 | 11,66507 | 2,39E-05 | 271,068413 |
R2 = 0,995 F . , R2 F , . , .
R2 ? , R2 , , , , R2 = 1. , .
|
|
, R2 , R2 .
(adjusted) R2 :
(255)
n ;
k .
(256)
R2 .
, , () . , . . - , , , . , , , , , . , () . :
(2.18) |
(257)
(258)
(259)
(260)
[-1,1], . , , () X1 .
,
(261) |
(262)
, :
(263)
, , . , , 1%, .
, .. , . , , , (Sy)
(264)
, , . ; t- . ( R):
|
|
, (265)
,
L ,
,
X t,
,
L .
, :
(266) |
UL L .