如何为情节的主要部分赋予不同的颜色 [英] How to give different colors to parts of the main of a plot

问题描述

我只代表平均总成本，平均可变成本，平均固定成本和边际成本的曲线.

I simply represent the curves of Average Total Costs, Average Variable Costs, Average Fixed Costs and Marginal Costs.

plot(Q,ATCosts,ylab=NA,ylim=c(0,62),type="l")
par(new=T)
plot(Q,AVCosts,ylab=NA,ylim=c(0,62),type="l",col="blue")
par(new=T)
plot(Q,AFCosts,ylab=NA,ylim=c(0,62),type="l",col="red")
par(new=T)
plot(Q,MCosts,ylab=NA,ylim=c(0,62),type="l",col="green")

主要是:

title(main="ATC,AVC,AFC,MC")

我想知道的是，是否有一种方法可以给图中的每个主要部分(包含某种类型的成本)提供与该成本相关的颜色，从而避免使用图例.因此，ATC必须用黑色书写. AVC必须用蓝色写...等等.

What I would like to know is if there is a way to give each piece of the main (containing a certain type of cost) the color related to that cost in the plot, in order to avoid to use a legend. Thus, ATC must be written in black; AVC must be written in blue...and so on.

我尝试通过以下方式重叠另一个标题:

I tried to overlap another title in the following way:

title(main="   ,AVC,   ,  ",col.main="blue")

但是结果却不尽人意.

推荐答案

不是一般的解决方案，因为您必须使用adj来获得正确的间距，但是它可以起作用:

Not a general solution, because you have to play with the adj to get the right spacing, but it works:

plot(1)
mtext("ATC, ",col='black',line=2,adj=0.4)
mtext("AVC, ",col='blue',line=2,adj=0.45)
mtext("AFC, ",col='red',line=2,adj=0.5)
mtext("MC",col='green',line=2,adj=0.54)

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