In epiforecasts/covidregionaldata: Subnational Data for COVID-19 Epidemiology

knitr::opts_chunk$set(
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Subnational data for the COVID-19 outbreak

Interface to subnational and national level COVID-19 data sourced from both official sources, such as Public Health England in the UK, and from other COVID-19 data collections, including the World Health Organisation (WHO), European Centre for Disease Prevention and Control (ECDC), John Hopkins University (JHU), Google Open Data and others. This package is designed to streamline COVID-19 data extraction, cleaning, and processing from a range of data sources in an open and transparent way. This allows users to inspect and scrutinise the data, and tools used to process it, at every step. For all countries supported, data includes a daily time-series of cases and, wherever available, data on deaths, hospitalisations, and tests. National level data is also supported using a range of data sources.

Installation

Install from CRAN:

install.packages("covidregionaldata")

Install the stable development version of the package with:

install.packages("covidregionaldata",
  repos = "https://epiforecasts.r-universe.dev"
)

Install the unstable development version of the package with:

remotes::install_github("epiforecasts/covidregionaldata")

Quick start

Load covidregionaldata, dplyr, scales, and ggplot2 (all used in this quick start),

library(covidregionaldata)
library(dplyr)
library(ggplot2)
library(scales)

Setup data caching

This package can optionally use a data cache from memoise to locally cache downloads. This can be enabled using the following (this will use the temporary directory by default),

start_using_memoise()

To stop using memoise use,

stop_using_memoise()

and to reset the cache (required to download new data),

reset_cache()

National data

To get worldwide time-series data by country (sourced from the World Health Organisation (WHO) by default but also optionally from the European Centre for Disease Control (ECDC), John Hopkins University, or the Google COVID-19 open data project), use:

nots <- get_national_data()
nots

This can also be filtered for a country of interest,

g7 <- c(
  "United States", "United Kingdom", "France", "Germany",
  "Italy", "Canada", "Japan"
)
g7_nots <- get_national_data(countries = g7, verbose = FALSE)

Using this data we can compare case information between countries, for example here is the number of deaths over time for each country in the G7:

g7_nots %>%
  ggplot() +
  aes(x = date, y = deaths_new, col = country) +
  geom_line(alpha = 0.4) +
  labs(x = "Date", y = "Reported Covid-19 deaths") +
  scale_y_continuous(labels = comma) +
  theme_minimal() +
  theme(legend.position = "top") +
  guides(col = guide_legend(title = "Country"))

Subnational data

To get time-series data for subnational regions of a specific country, for example by level 1 region in the UK, use:

uk_nots <- get_regional_data(country = "UK", verbose = FALSE)
uk_nots

Now we have the data we can create plots, for example the time-series of the number of cases for each region:

uk_nots %>%
  filter(!(region %in% "England")) %>%
  ggplot() +
  aes(x = date, y = cases_new, col = region) +
  geom_line(alpha = 0.4) +
  labs(x = "Date", y = "Reported Covid-19 cases") +
  scale_y_continuous(labels = comma) +
  theme_minimal() +
  theme(legend.position = "top") +
  guides(col = guide_legend(title = "Region"))

See get_available_datasets() for supported regions and subregional levels. To view what datasets we currently have subnational data for, along with their current status, check the supported countries page or build the supported countries vignette.

For further examples see the quick start vignette. Additional subnational data are supported via the JHU() and Google() classes. Use the available_regions() method once these data have been downloaded and cleaned (see their examples) for subnational data they internally support.

Citation

If using covidregionaldata in your work please consider citing it using the following,

citation("covidregionaldata")

Development

This package is the result of work from a number of contributors (see contributors list here). We would like to thank the CMMID COVID-19 working group for insightful comments and feedback.

We welcome contributions and new contributors! We particularly appreciate help adding new data sources for countries at sub-national level, or work on priority problems in the issues. Please check and add to the issues, and/or add a pull request. For more details, start with the contributing guide. For details of the steps required to add support for a dataset see the adding data guide.

epiforecasts/covidregionaldata documentation built on June 26, 2022, 1 a.m.