, , . (x1, x2 xN) . u(xi), xi , . xi u(xi) Xi.
, Xi . , , , , ( ) . .
, :
- ;
- (, ) ;
- , .
μx x, ( ), n xi , n :
= (9)
, i, n , , (**), i (*) y, .. i = .
. ( ) , :
u()= , (10)
u(x) x, (11):
u(x) =
, , , . u() , , . , , , , .
|
|
, . , , , .
, i. [1]:
- ;
- , , ;
- ;
- , ;
- , , .
, , , . Xi , . (), (), , .
, :
(u (x) = s);
(s = u (x));
95%- Q : u (x) = Q /2 ( Q 95 %) [3].
, μx σ ( 7):
p(t) = (12)
μx |
x |
a+ |
a- |
μx+ σ |
μx-σ |
1/2 a |
P(x) |
7 - |
. i - +, , ( , . 8 a). i, i, :
i = (13)
:
u2(xi) = (14)
u(xi) = (15)
, , , . :
|
|
- , ( + ), ;
- (, 25 0,05 ), = 0,05 ;
- ( ) [3].
: , , , . , ( ) ( 8 ):
u2(xi) = (16)
u(xi) = (17)
:
- , , ( ) , ;
- ( ), [3].
1 : ; |
a |
a |
P(x) |
x |
a |
a |
μx |
a+ |
a- |
μx+a/ |
μx-a/ |
1/2 a |
) |
P(x) |
μ |
μx +a/ |
μx -a/ |
a- |
a+ |
1/ a |
) |
, , , , , , , () . , , , , , , , , . . , , , , . ( ) "", , , [1].
, . ( ), , , . , , , [1, .23]. , , i, , Xj, , .
|
|
. x z :
cov (x,z) = cov (z, x) = (18)
cov (x,z) s(xi, zi), n xi zi x z:
s(xi, zi) = (19)
s( , ) = (20)
uc2(y), , :
uc2(y) = , (21)
xi; xj Xi; Xj,
u(xi,xj) xi xj.
xi xj :
r(xi; xj) = , (22)
r(xi; xj) = r(xj; xi) -1 ≤ r(xi; xj) ≤ +1
(21) :
uc2(y) = , (23)
, i Xk , :
) i Xj , , , , () , ;
) i Xj ;
) i Xj.