在同一面板中绘制多个直方图(Plotting multiple histograms in same panel)

在同一面板中绘制多个直方图(Plotting multiple histograms in same panel)

我试图在同一个面板中的数据框中绘制一些变量的多个直方图。 以下是一些代码：

library(lattice) dd <- data.frame(gp = factor(rep(paste('Group', 1:6, sep = ''), each = 100)), x = rnorm(600)) histogram( ~ x | gp, data = dd) histogram( ~ x | gp, data = dd, as.table = TRUE)

这是将数据x放入组1到6中。在给定的数据帧中，我们已经有特定类别的数字。 例如，假设我想在同一个面板中绘制身高，体重和平均血压（日期框架中的变量）的直方图。 如何在不必形成新数据集和组1到3的情况下执行此操作？

I am trying to plot multiple histograms of some variables in a data frame in the same panel. Here is some following code:

library(lattice) dd <- data.frame(gp = factor(rep(paste('Group', 1:6, sep = ''), each = 100)), x = rnorm(600)) histogram( ~ x | gp, data = dd) histogram( ~ x | gp, data = dd, as.table = TRUE)

This is putting the data x into the groups 1 to 6. In a given dataframe, we already have the numbers in particular categories. For example, suppose I want to plot a histogram of height, weight and average blood pressure (variables in a date frame) in the same panel. How would I do this without having to form a new data set and groups 1 to 3?

最满意答案

无需在此处重塑数据。

histogram( ~ height +age +weight ,data = dd)

然后，您可以使用layout来更改面板的显示顺序。 例如：

histogram( ~ height +age +weight ,layout=c(1,3),data = dd)

这将在3个面板中产生3个直方图。

编辑

要添加标题，您可以使用main

histogram( ~ height +age +weight ,layout=c(1,3),data = dd, main='PLEASE READ LATTICE HELP')

附注：设置参数在不同的晶格函数之间共享。 例如，xlab的条目： See xyplot 。 当你去xyplot帮助你可以阅读：

main: Typically a character string or expression describing the main title to be placed on top of each page. Defaults to NULL

No need to reshape data here.

histogram( ~ height +age +weight ,data = dd)

You can then ply with layout to change the display order of panels. For example:

histogram( ~ height +age +weight ,layout=c(1,3),data = dd)

This will produce 3 histograms in 3 panels.

EDIT

to add a title you can use main

histogram( ~ height +age +weight ,layout=c(1,3),data = dd, main='PLEASE READ LATTICE HELP')

Side note: Settings parameters are shared between different lattice functions. For example the entry of xlab: See xyplot. when you go to xyplot help you can read :

main: Typically a character string or expression describing the main title to be placed on top of each page. Defaults to NULL