README.Rmd

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output: github_document
---

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# **PL94171**: Tabulate P.L. 94-171 Redistricting Data Summary Files <a href='https://corymccartan.com/PL94171/'><img src='man/figures/logo.png' align="right" height="300" style="padding: 12px; height: 300px;" /></a>

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The **PL94171** package contains tools to process legacy format summary
redistricting data files produced by the United States Census Bureau pursuant to
P.L. 94-171. These files are generally available earlier but are difficult to
work with as-is.

## Installation

Install the latest version from CRAN with:

``` r
install.packages("PL94171")
```

You can also install the development version from [GitHub](https://github.com/) with:

``` r
# install.packages("devtools")
devtools::install_github("CoryMcCartan/PL94171")
```

## Basic Usage

Just need block- or precinct-level data for total and voting-age population by
race? Then `pl_tidy_shp()` is all you need.

```{r}
library(PL94171)
# put the path to the PL 94-171 files here, or use `pl_url()` to download them
pl_path = system.file("extdata/ri2018_2020Style.pl", package="PL94171")
pl_tidy_shp("RI", pl_path)
```

To tabulate at different geographies, or to extract other variables, check out
the [Getting Started page](https://corymccartan.com/PL94171/articles/PL94171.html).