https://github.com/gadenbuie/starwarsdb

Relational Data from the Star Wars API for Learning and Teaching
https://github.com/gadenbuie/starwarsdb

dplyr duckdb-database learning relational-database sql star-wars-data teaching

Last synced: about 2 months ago
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Relational Data from the Star Wars API for Learning and Teaching

• Host: GitHub
• URL: https://github.com/gadenbuie/starwarsdb
• Owner: gadenbuie
• License: other
• Created: 2020-10-07T19:38:05.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2022-12-08T16:08:54.000Z (almost 2 years ago)
• Last Synced: 2024-07-04T02:34:41.825Z (2 months ago)
• Topics: dplyr, duckdb-database, learning, relational-database, sql, star-wars-data, teaching
• Language: R
• Homepage: https://pkg.garrickadenbuie.com/starwarsdb
• Size: 584 KB
• Stars: 37
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.Rmd
  • License: LICENSE

Awesome Lists containing this project

• awesome-rainmana - gadenbuie/starwarsdb - Relational Data from the Star Wars API for Learning and Teaching (R)
• jimsghstars - gadenbuie/starwarsdb - Relational Data from the Star Wars API for Learning and Teaching (R)

README

        
---

output: github_document

---

```{r, include = FALSE}

knitr::opts_chunk$set(

  collapse = TRUE,

  comment = "#>",

  fig.path = "man/figures/README-",

  out.width = "100%"

)

```

[swapi]: https://swapi.dev

[rwars]: https://github.com/Ironholds/rwars

[dbplyr]: https://dbplyr.tidyverse.org/

[dm]: https://krlmlr.github.io/dm/

[duckdb]: https://duckdb.org

# starwarsdb

[![CRAN status](https://www.r-pkg.org/badges/version/starwarsdb)](https://CRAN.R-project.org/package=starwarsdb)

[![R-CMD-check](https://github.com/gadenbuie/starwarsdb/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/gadenbuie/starwarsdb/actions/workflows/R-CMD-check.yaml)

**starwarsdb** provides data from the [Star Wars API][swapi] as a set of relational tables, or as an in-package [DuckDB] database.

![](man/figures/README-starwars-data-model-1.svg)

**Formats:** 

[Metadata](#star-wars-data),

[Local Tables](#local-tables),

[Remote Tables](#remote-tables),

[Data Model (dm)](#dm-tables),

[API (rwars)](#api)

## Installation

You can install **starwarsdb** from CRAN:

``` r

install.packages("starwarsdb")

```

Or you can install the development version of **starwarsdb** from GitHub with [remotes](https://remotes.r-lib.org):

``` r

# install.packages("remotes")

remotes::install_github("gadenbuie/starwarsdb")

# For remotes <= 2.1.0

remotes::install_github("gadenbuie/starwarsdb@main")

```

## Star Wars Data

```{r echo=FALSE}

library(tibble)

```

All of the tables are available when you load **starwarsdb**

```{r message=FALSE, warning=FALSE}

library(dplyr)

library(starwarsdb)

```

or via

```{r eval=FALSE}

data(package = "starwarsdb")

```

The `schema` table includes information about the tables that were sourced from [SWAPI].

```{r}

schema

```

```{r}

schema %>% 

  filter(endpoint == "films") %>% 

  pull(properties)

```

## Local Tables

Ask questions, like _who flew an X-Wing?_

```{r}

x_wing_pilots <- pilots %>% filter(vehicle == "X-wing")

x_wing_pilots

people %>% semi_join(x_wing_pilots, by = c(name = "pilot"))

```

## Remote Tables

**starwarsdb** also includes the entire data set as a DuckDB database,

appropriate for teaching and practicing remote database access with [dbplyr].

```{r}

con <- starwars_connect()

people_rmt <- tbl(con, "people")

pilots_rmt <- tbl(con, "pilots")

pilots_rmt

x_wing_pilots <- pilots_rmt %>% filter(vehicle == "X-wing")

x_wing_pilots

people_rmt %>% semi_join(x_wing_pilots, by = c(name = "pilot"))

```

## DM Tables

Finally, **starwarsdb** provides a function that returns a pre-configured [dm] object.

The `dm` package wraps local data frames into a complete relational data model.

```{r dm-tables}

library(dm, warn.conflicts = FALSE)

sw_dm <- starwars_dm()

sw_dm

sw_dm %>%

  dm_select_tbl(pilots, people) %>%

  dm_filter(pilots = vehicle == "X-wing") %>%

  dm_zoom_to("people") %>%

  semi_join(pilots)

```

```{r starwars-data-model, eval = FALSE, echo = TRUE}

dm_draw(sw_dm)

```

![](man/figures/README-starwars-data-model-1.svg)

```{r starwars-data-model-write, echo = FALSE, eval = TRUE}

sw_dm %>%

  dm_draw(graph_attrs = 'bgcolor="transparent"', node_attrs = 'fontname="Helvetica"') %>%

  DiagrammeRsvg::export_svg() %>%

  writeLines("man/figures/README-starwars-data-model-1.svg")

```

## API

For API access from R, check out the [rwars] package by Oliver Keyes.

Big thanks to `rwars` for making it easy to access the Star Wars API!