11

12

1m

21

22

2m

n1

n2

nm

xx

x

xx

x

P

xx

x






































...........................(5)

P(W)

P(W|W)

P(W|D)

RN

P(W|W)

P(W|D)

I

 

1. 

I-1

>0

RN 

 P(W/W)

I

I

 

2. 

I-1

=0

RN 

 P(W/D)

I

I

 

(1996)

(Exponential distribution)

3

P

(cm/day)

0

1

(Eigen Values) 



i

(Eigen Vectors)

(

)

 

72 

j

P

j

(cm)N

0

1

 

j

PP(ln(1



N))

c

K



 ....................................(3)

(Component 

Loading)

0.75

0.5

0.75

0.3

0.5

(Liu et. al., 2003

2009)

 

 

2.3

 

 

(ET

i

)

(ET

0i

)

(K

c

)

4  

ij

ij

i

ij

yx

j

Lr







 ...................................(6)

i0i

ET

ET



 ....................................(4)

DSSAT

Ritchie 

modification of Priestley-Taylor (Priestly and 
Taylor, 1972; Ritchie, 1972, 1985)

 

 

2.4 

 

Karl 

Pearson

1901

Hotelling

1933

(

)

(

2002) 

L

ij

j

i



ij

j

i



i

i



j

j

(1)

n

80% (

90%)

n

(2)

(rule of thumb)

1.0

1.0

(3)

(scree test)

(4)

k

5%

 

m

n

n 

 m

P