面板数据回归:R语言code

library(plm)

library(psych)

library(xts)

library(tseries)

library(lmtest)

## import dataset

datas<-read.table("data.txt",header =TRUE)

## adf test

pcgdp<-xts(datas$PCGDP,as.Date(datas$year))

adf.test(pcgdp)

# result: stationary

ltax<-xts(datas$Ltax,as.Date(datas$year))

adf.test(ltax)

# result: stationary

hp<-xts(datas$hp,as.Date(datas$year))

adf.test(hp)

# result: stationary

lp<-xts(datas$lp,as.Date(datas$year))

adf.test(lp)

# result: stationary

## 协整检验

# Engle-Granger

reg<-lm(datas$hp~datas$lp+datas$Ltax+datas$PCGDP)

summary(reg)

error<-residuals(reg)

adf.test(error)

# result: residuals stationary

### 面板数据回归

hpdatas<-plm.data(datas,index=c("city","year"))

# Pooled Regression Model

hp_pool<-plm(hp~lp+Ltax+PCGDP+PP,data=hpdatas,model = "pooling")

# Fixed Effects Regression Model

hp_fe<-plm(hp~lp+Ltax+PCGDP+PP,data=hpdatas,model = "within")

# F-test :

pFtest(hp_fe,hp_pool)

# result: significant effects

# Random Effects Regression Model

hp_re<-plm(hp~lp+Ltax+PCGDP,data=hpdatas,model="random",random.method = "swar")

           

# Hausman test

phtest(hp_fe,hp_re)

# if p<0.05,then use fixed effects

# result: p=0.6785>0.05,use random ffects

# Random Effects Regression Model

hp_re<-plm(hp~lp+Ltax+PCGDP,data=hpdatas,model="random",random.method = "swar")

summary(hp_re)

# 显著水平 a=0.01

# result: fp:房价与 lp:地价正相关,且显著; 

#         fp:房价与 Ltax: 地税收入正相关,且显著; 

#         fp:房价与 PCGDP: 人均GDP 正相关,且显著;

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转载自www.cnblogs.com/laoketeng/p/11268581.html