我想把y和y画在同一个图上。
x <- seq(-2, 2, 0.05)
y1 <- pnorm(x)
y2 <- pnorm(x, 1, 1)
plot(x, y1, type = "l", col = "red")
plot(x, y2, type = "l", col = "green")
但当我这样画的时候，它们就不在同一个图上了。
在Matlab中是可以的，但有人知道在R中怎么做吗?
当前回答
我们也可以使用格库
library(lattice)
x <- seq(-2,2,0.05)
y1 <- pnorm(x)
y2 <- pnorm(x,1,1)
xyplot(y1 + y2 ~ x, ylab = "y1 and y2", type = "l", auto.key = list(points = FALSE,lines = TRUE))
对于特定的颜色
xyplot(y1 + y2 ~ x,ylab = "y1 and y2", type = "l", auto.key = list(points = F,lines = T), par.settings = list(superpose.line = list(col = c("red","green"))))
其他回答
使用plotly(用主要和次要y轴从plotly中添加溶液-它似乎缺失了):
library(plotly)
x <- seq(-2, 2, 0.05)
y1 <- pnorm(x)
y2 <- pnorm(x, 1, 1)
df=cbind.data.frame(x,y1,y2)
plot_ly(df) %>%
add_trace(x=~x,y=~y1,name = 'Line 1',type = 'scatter',mode = 'lines+markers',connectgaps = TRUE) %>%
add_trace(x=~x,y=~y2,name = 'Line 2',type = 'scatter',mode = 'lines+markers',connectgaps = TRUE,yaxis = "y2") %>%
layout(title = 'Title',
xaxis = list(title = "X-axis title"),
yaxis2 = list(side = 'right', overlaying = "y", title = 'secondary y axis', showgrid = FALSE, zeroline = FALSE))
工作演示截图:
如果你想把图分成两列(2个相邻的图)，你可以这样做:
par(mfrow=c(1,2))
plot(x)
plot(y)
参考链接
Lines()或points()将添加到现有的图形中，但不会创建新的窗口。所以你需要这么做
plot(x,y1,type="l",col="red")
lines(x,y2,col="green")
您还可以在同一图形但不同的轴上使用par和plot。具体如下:
plot( x, y1, type="l", col="red" )
par(new=TRUE)
plot( x, y2, type="l", col="green" )
如果你详细阅读了R中的par，你将能够生成真正有趣的图形。另一本书是Paul Murrel的《R Graphics》。
我们也可以使用格库
library(lattice)
x <- seq(-2,2,0.05)
y1 <- pnorm(x)
y2 <- pnorm(x,1,1)
xyplot(y1 + y2 ~ x, ylab = "y1 and y2", type = "l", auto.key = list(points = FALSE,lines = TRUE))
对于特定的颜色
xyplot(y1 + y2 ~ x,ylab = "y1 and y2", type = "l", auto.key = list(points = F,lines = T), par.settings = list(superpose.line = list(col = c("red","green"))))
