-1
在R的名單,我可以使用lapply
或map
到$year
列在列表中添加幾個數據幀?我想在融化之前在數據框架中擁有一年。函數映射到數據幀
years<-2004:2006
names04<-c("green","q22","yellow")
names05<-c("green","q27","yellow")
names06<-c("green","q29","yellow")
yr2004<-1:3
yr2005<-6:8
yr2006<-8:10
year2004<-rbind(names04,yr2004)
colnames(year2004)<-names04
year2004
year2005<-rbind(names05,yr2005)
colnames(year2005)<-names05
year2006<-rbind(names06,yr2006)
colnames(year2006)<-names06
year2004<-as.data.frame(year2004)
year2005<-as.data.frame(year2005)
year2006<-as.data.frame(year2006)
## rewrite this section with lapply ##
dfs<-list(year2004,year2005,year2006)
year2004$year=2004
year2005$year=2005
year2006$year=2006
library(purrr)
map(cbind,dfs,years)
#where
years <- c(2004, 2005, 2006)
map gives an error:
.x
is not a vector (closure)
把它們放在一個列表和地圖? 'Map(cbind,l1,year = years)'year where c(2004,5,6)and l1 the list with your df – Sotos