English
资源说明：draws populations pyramid, wrapper to barplot()
Pyramid
=======
```Pyramid()``` draws a population pyramid. Tons of optional arguments. Other related functions may be added. Soon to undergo overhaul. [Here](http://timriffe.github.io/Pyramid/)'s a webpage for the package.
### Installation
To download and install the development version of Pyramid:
1. make sure you have the most recent version of R
2. look at the notes below if you're on Windows or Mac.
3.
Download the [zip ball](https://github.com/timriffe/Pyramid/master) or
[tar ball](https://github.com/timriffe/Pyramid/tarball/master), decompress and run `R CMD INSTALL` on it in the terminal command line, or use the **devtools** package to install the development version:
```r
# install.packages("devtools")
library(devtools)
install_github("timriffe/Pyramid",subdir="Pyramid")
```
**Note**: Windows users need [Rtools](http://cran.r-project.org/bin/windows/Rtools/) to install from github as shown above. Get the most recent version of [R for Windows](http://cran.r-project.org/bin/windows/base/) and download and install the version of Rtools that corresponds to it.
**Note**: Mac users might be required to install the appropriate version [XTools](https://developer.apple.com/xcode/) from the [Apple Developer site](https://developer.apple.com/) in order to install the development version. You may need to [register as an Apple developer](https://developer.apple.com/programs/register/). An older version of XTools may also be required.
本源码包内暂不包含可直接显示的源代码文件，请下载源码包。
