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大神帮忙,实在搞不定,感谢了先

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发表于 2016-4-19 12:35:10 | 显示全部楼层 |阅读模式

ZKRCPIRGYLJGDTZFDCSHXFLJJCKKCKLJHYLHYLLJGLHYGLHYLJCZCZLJM2M1PMI_R
26.82.35.410.2310.2-20.8-17.3-0.50.7-1.81.376.313.317.4-1
-81.86.211.44.310.4-14.3-14.51.51.5335.85.81418.6-0.6
71.46.110110.7-4.1-85.44.47.46.49.28.413.315.2-0.3
-11.46.110.21.310.6-7.6-8.55.44.37.56.211.4813.715.7-0.4
101.46.110.2210.6-12.1-8.64.64.26.56.18.77.713.514-0.2
-151.46.210.32.610.5-11.4-8.13.84.15.669.47.613.111.4-0.2
-281.46.310.93.510.5-9.1-7.53.74.25.86.16.27.413.39.3-0.3
-191.36.311.24.310.4-8.2-7.24.24.25.76.112.57.513.36.60
-311.36.311.44.610.4-1.2-6.93.54.25.16.213.96.611.84.30.2
-411.36.211.45.110.4-9.3-85.64.47.76.45510.84.70.2
-341.36.212610.4-11.1-7.634.15.36.18.25.110.13.70.1
-241.26.413.58.510.6-13.8-6.3-2.54.5-2.26.45.83.911.62.90.1
-601.16.813.910.410.710.8-2.311.29.217.212.50.33.212.55.6-0.1
-520.86.111.2210.4-10.9-10.97.97.99.99.95510.810.6-0.2
-29.528.315.710.51243.45.67.16.48.78.28.612.23.20.1
-18.328.315.811.912-0.53.47.17.38.68.89.18.312.33.20.3
-15.32.18.415.912.4128.43.84.87.35.78.89.48.212.63.20.8
-152.18.516.112.51211.33.397.710.99.26.38.112.94.81.1
-6.62.28.516.513.212.142.38.17.5996.18.312.85.71.1
3.62.38.81713.712.16.927.77.59.19.16.98.513.56.71.7
-15.12.38.817.314.112.16.41.29.47.511.19.28.88.814.78.91
-4.32.38.717.214.712.130.266.87.68.37.28.813.45.70.8
7.92.28.717.316.4120.8-0.5677.48.59.29.313.25.50.4
12.72.38.717.616.812-9-15.37.46.695.29.312.15.40.3
38.22.28.617.919.311.8-4.83.814.78.819.610.78.211.113.36.90.2
192.58.716.112.512.110.310.35.45.46.46.4131313.21.20.5
60.52.69.719.619.813.16.27.610.91013.311.38.210.113.69.31
35.32.69.719.919.5139.37.710.91012.111.315.99.914.29.41.4
38.82.69.720.119.2136.57.611.39.912.311.216.29.414.38.91.4
49.62.59.620.219.712.93.37.710.89.811.411.113.48.614.28.91.1
34.72.59.520.319.312.87.18.310.69.610.9119.28.114.79.91
25.72.49.420.120.512.87.88.5119.410.61111814.59.70.3
50.82.49.320.120.312.7-28.6119.312.611.312.17.51490.1
37.92.49.420.420.612.60.410.910.29.213.311.36.26.615.811.30.8
30.72.49.420.621.112.515.7148.58.910.910.76.16.716.111.90.6


求后面数据关于ZKR的线性关系
x<-read.csv("R_mon_final1.csv",header=T,sep=",")
x.pr<-princomp(~CPIR+GYLJ+GDTZ+FDC+SHXFLJ+JCK+KCKLJ+HYL+HYLLJ+GLHY+GLHYLJ+PMI_R+CZ+CZLJ+M2+M1,data=x,cor=T)
summary(x.pr,loadings=TRUE)#找出所有变量之间的关系,获得主成分概况
#对主成分做回归分析
pre=predict(x.pr)
x$Z1=pre[,1]
x$Z2=pre[,2]
x$Z3=pre[,3]
x$Z4=pre[,4]
x$Z5=pre[,5]
x$Z6=pre[,6]
x$Z7=pre[,7]
lm.sol=lm(ZKR~Z1+Z2+Z3+Z4+Z5+Z6+Z7,data=x)
summary(lm.sol)
#Z4,Z5,Z7与ZKR的相关性较低,去除
lm.sol=lm(ZKR~Z1+Z2+Z3+Z6,data=x)
summary(lm.sol)
#找出最终的系数
beta=coef(lm.sol)#主成分的系数
A=loadings(x.pr)#主成分与各变量之间的关系
X.bar=x.pr$center#标准化时的中心值
X.sd=x.pr$scale#标准化时的方差
coef=(beta[2]*A[,1]+beta[3]*A[,2]+beta[4]*A[,3]+beta[5]*A[,6])/X.sd
beta0=beta[1]-sum(X.bar*coef)
c(beta0,coef)
#进行验算
x1<-read.csv("R_mon_final1.csv",header=T,sep=",")
Mtr_x<-as.matrix(x1[,-1])
lm_ZKR<-Mtr_x%*%coef + beta0


[1,]  -45.04046
[2,]  -40.99504
[3,]  -81.49026
[4,]  -89.34061
[5,]  -76.77624
[6,]  -91.25612
[7,]  -82.68502
[8,] -127.78570
[9,] -153.36960
[10,] -100.70537
[11,] -119.28412
[12,] -103.11603
[13,]  -84.61337
[14,]  -84.74305
[15,]  -92.07408
[16,]  -92.04162
[17,]  -98.76406
[18,]  -77.71950
[19,]  -62.91335
[20,]  -61.15001
[21,]  -61.84735
[22,]  -63.64842
[23,]  -72.89045
[24,]  -40.98089
[25,]  -50.51999
[26,] -109.60241
[27,]  -34.53901
[28,]  -78.30246
[29,]  -80.44856
[30,]  -66.16390
[31,]  -44.93860
[32,]  -58.60507
[33,]  -61.70416
[34,]  -22.53547
[35,]  -33.38052


用主成分聚合并画图,拟合非常好,但是系数还原后就不行了,求助。
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