如何利用ggplot2画双坐标轴曲线

参考代码如下：

library(ggplot2)

x=abs(rnorm(10))

pp=seq(0.1,1,by=0.1)pp

sx=array(0,10,1)sx

for(i in 1:10)

{

sx[i]=sum(x[1:i])

}

sx

DataCumPer=data.frame(CUM=sx,PP=pp)#一定要转换成数据框

p=ggplot(DataCumPer,aes(CUM,PP))

p=p+geom_line(linetype="dotted",size=I(0.8))#设置线型和粗细

p=p+xlab("累积和")#横轴标签

p=p+geom_point(size=I(3),shape=I(18))#设置形状和大小

p=p+ylab("百分位点")#纵轴标签

p=p+opts(axis.title.x= theme_text(size = 15,colour="red"))#设置字体和颜色

p=p+opts(axis.title.y= theme_text(size = 15,colour="blue"))#设置字体和颜色

p=p+scale_y_continuous(formatter = "percent",breaks =pp)#设置格式为百分比，10%为一档

p=p+opts(title="帕累托图",plot.title = theme_text(size = 20,face="bold",vjust=1.5))#设置图的标题

p#显示结果

library(plotrix)

twoord.plot(lx,ly,rx,ry,data=NULL,main="",xlim=NULL,lylim=NULL,rylim=NULL,

mar=c(5,4,4,4),lcol=1,rcol=2,xlab="",lytickpos=NA,ylab="",ylab.at=NA,

rytickpos=NA,rylab="",rylab.at=NA,lpch=1,rpch=2,

type="b",xtickpos=NULL,xticklab=NULL,halfwidth=0.4,axislab.cex=1,

do.first=NULL,xaxt="s",...)

xval1 <- seq.Date(as.Date("2017-01-02"), as.Date("2017-01-10"), by="day")

xval2 <- seq.Date(as.Date("2017-01-01"), as.Date("2017-01-15"), by="day")

going_up<-seq(3,7,by=0.5)+rnorm(9)

going_down<-rev(60:74)+rnorm(15)

twoord.plot(2:10,going_up,1:15,going_down,xlab="Sequence",

 ylab="Ascending values",rylab="Descending values",lcol=4,

 main="Plot with two ordinates - points and lines",

 do.first="plot_bg()grid(col=\"white\",lty=1)")

 axis.Date(1,xval2)

library(ggplot2)

library(gtable)

library(grid)

grid.newpage()

# two plots

p1 <- ggplot(mtcars, aes(mpg, disp)) + geom_line(colour = "blue") + theme_bw()

p2 <- ggplot(mtcars, aes(mpg, drat)) + geom_line(colour = "red") + theme_bw() %+replace% theme(panel.background = element_rect(fill = NA))

# extract gtable

g1 <- ggplot_gtable(ggplot_build(p1))

g2 <- ggplot_gtable(ggplot_build(p2))

# overlap the panel of 2nd plot on that of 1st plot

pp <- c(subset(g1$layout, name == "panel", se = t:r))

g <- gtable_add_grob(g1, g2$grobs[[which(g2$layout$name == "panel")]], pp$t, pp$l, pp$b, pp$l)

# axis tweaks

ia <- which(g2$layout$name == "axis-l")

ga <- g2$grobs[[ia]]

ax <- ga$children[[2]]

ax$widths <- rev(ax$widths)

ax$grobs <- rev(ax$grobs)

ax$grobs[[1]]$x <- ax$grobs[[1]]$x - unit(1, "npc") + unit(0.15, "cm")

g <- gtable_add_cols(g, g2$widths[g2$layout[ia, ]$l], length(g$widths) - 1)

g <- gtable_add_grob(g, ax, pp$t, length(g$widths) - 1, pp$b)

# draw it

grid.draw(g)

用ggplot2画个双坐标也太难了吧。。。。

d <- data.frame(name=c("zhao","qian","sun","li"),weight=c(62,58,79,60),height=c(178,169,180,173))

x <- d$name

y1 <- d$weight

y2 <- d$height

bar <- barplot(y1,xlim=c(0,5),ylim=c(0,100),ylab="Weight",col="blue",col.axis="blue",col.lab="blue")

mtext(x,side=1,line=1,at=bar,col="black")

mtext("Name",side=1,line=3,col="black")

par(new=T)    ## 创建新的画布，类似于ggplot2中的图层叠加

plot(bar,y2,axes=F,xlim=c(0,5),ylim=c(100,190),xlab="",ylab="",col="red",type="b")

axis(4,col="red",col.ticks="red",col.axis="red")

mtext("Heigth (cm)",side=4,line=3,col="red")

若画图时需要将纵坐标方向改变，可以采用取相反数的方法。正常情况下，y轴是从下往上依次增大，可以让所有数值乘以-1，使y轴从下往上依次减小，然后通过axis函数修改y轴的label。

R语言学习  绘制双坐标轴(双y轴)的方法 plotrix_瞎掰大数据_新浪博客

利用ggplot2画双坐标轴曲线

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