雁茗轩 发表于 2012-4-23 23:48
恩,是,看来我的还是不好做
yan=read.table("d.txt",header=TRUE)
y=yan$CPI
x=yan$do1 # [0.00 1.00 3.81 1.65....10.84 1.40 1.71 1.93]
x1=yan$do1[2:120] # [1.00 3.81 1.65....10.84 1.40 ]
x2=yan$do1[3:121] # [3.81 1.65....10.84 1.40 1.71 ]
x3=yan$do1[4:122] # [1.65....10.84 1.40 1.71 1.93]
mod1=lstar(y,m=3,d=1,thVar=x1,control=list(maxit=3000))
mod1
LSTAR model
Coefficients:
Low regime:
const1 phi1.1 phi1.2 phi1.3
0.27269434 0.72507134 -0.03027709 0.14946705
High regime:
const2 phi2.1 phi2.2 phi2.3
-0.11229556 -0.48641219 -0.08182624 -0.21365960
Smoothing parameter: gamma = 100
Threshold
Variable: external
Value: -0.04647
###########
mod2=lstar(y,m=3,d=1,thVar=x2,control=list(maxit=3000))
mod2
LSTAR model
Coefficients:
Low regime:
const1 phi1.1 phi1.2 phi1.3
0.1246322 0.3213363 -0.2095328 0.1370120
High regime:
const2 phi2.1 phi2.2 phi2.3
0.2047646 0.2967180 0.3461295 -0.3922440
Smoothing parameter: gamma = 100
Threshold
Variable: external
Value: 2.993
##########
mod3=lstar(y,m=3,d=1,thVar=x3,control=list(maxit=3000))
mod3
LSTAR model
Coefficients:
Low regime:
const1 phi1.1 phi1.2 phi1.3
0.20220828 0.56478303 -0.08529851 0.02761796
High regime:
const2 phi2.1 phi2.2 phi2.3
-0.14253275 -0.70277458 0.07884266 0.03247553
Smoothing parameter: gamma = 110.5
Threshold
Variable: external
Value: 4.786