R中的绘制密度 [英] Plotting densities in R

问题描述

因此，我正在绘制密度(直方图).例如:

So, I am plotting densities (histograms). For example:

d <- density(table[table$position==2,]$rt)

但是，我想在同一图上绘制多个密度.例如，我也想绘制

But, I want to plot multiple densities on the same plot. For instance, I also want to plot

density(table[table$position==3,]$rt)
density(table[table$position==4,]$rt)
density(table[table$position==5,]$rt)

此外，我想为每种密度指定中心点.

Furthermore, I want to specify the center point for each of these densities.

问这个问题的另一种方法是，如何手动将密度图移动一定数量的x单位? (例如，将所有x值增加5)

Another way to ask this question is, how can I manually shift a density plot over by a certain number of x units? (for instance, increase all x values by 5)

推荐答案

与许多R分析功能一样，保存输出是您的朋友. ?density也是如此.

As with many R analysis functions, saving the output is your friend. So is ?density.

foo<-density(something)

names(foo)

"x", "y" , "bw", "n" , "call" ,"data.name"

所以， plot(foo$x+5, foo$y, t='l') 据我所知，您已经完成了.

So, plot(foo$x+5, foo$y, t='l') And you're done so far as I can tell.

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