1、地圖code
library(ggplot2) data<-read.table("C:/Users/steph/Desktop/visual/data.csv",sep=",",header=TRUE) city<-read.table("C:/Users/steph/Desktop/visual/region.csv",sep=",",header=TRUE) head(data,5) region price lon lat 1 南沙區 13000 113.4461 22.74067 2 南沙區 13000 113.4504 22.73769 3 南沙區 13000 113.4535 22.72865 4 南沙區 13000 113.4557 22.72709 5 南沙區 13000 113.4571 22.72579 head(city,5) region lon lat 1 從化區 113.5931 23.55400 2 增城區 113.8175 23.26669 3 黃埔區 113.4870 23.18759 4 天河區 113.3685 23.13049 5 荔灣區 113.2254 23.11242 p<-ggplot(data,aes(x=lon, y=lat))+geom_polygon(aes(fill=price, group=region)) p1<-p+scale_fill_gradient(high="darkgreen",low="lightgreen") p2<-p1+geom_text(aes(x=lon,y=lat,label=region),family="GB1",data=city) p2
2、維恩圖圖片
library(VennDiagram) A<-1:50 B<-c(30:60,100:120) C<-c(50:70,110:130) Length_A<-length(A) Length_B<-length(B) Length_C<-length(C) Length_AB<-length(intersect(A,B)) Length_BC<-length(intersect(B,C)) Length_AC<-length(intersect(A,C)) Length_ABC<-length(intersect(intersect(A,B),C))
T1<-venn.diagram(list(A=A,B=B),filename=NULL,lwd=1,lty=2,col=c('red','blue'),fill=c('red','blue'),cat.col=c('red','blue'),rotation.degree=90) grid.draw(T1)
T2<-venn.diagram(list(A=A,B=B,C=C),filename=NULL,,lwd=1,lty=2,col=c('red','green','blue'),fill=c('red','green','blue'),cat.col=c('red','green','blue'),reverse=TRUE) grid.draw(T2)