Download and post process the infectious disease case data 
              from Japan Institute for Health Security. Also the package included 
              ready-to-analyse datasets. See the data source website for further details
              <https://id-info.jihs.go.jp/>.

Provides tools for drawing maps of Japan with prefecture and
    municipal boundaries. The plotting workflow mirrors the 'usmap' package and
    includes a transform that moves Okinawa and Ogasawara into visible inset
    locations. Boundary helpers build local 'GeoPackage' files from Japan's
    official MLIT N03 administrative area data
    <https://nlftp.mlit.go.jp/ksj/gml/datalist/KsjTmplt-N03-2024.html>.

Provides boundary 'GeoPackage' files used by the 'jpmap' package,
    including Japan prefecture example boundaries and official MLIT N03
    administrative area data converted for 'jpmap'. Keeping these data in a
    separate package lets 'jpmap' update its functionality without repeatedly
    redistributing large boundary files on CRAN mirrors.

Helpful functions for using mesh code (80km to 100m) data in Japan. Visualize mesh code using 'ggplot2' and 'leaflet', etc.

Provides tools to use the 'e-Stat' API
    (<https://www.e-stat.go.jp/>), the portal site for Japanese
    government statistics.

Contains functions for fitting a joinpoint proportional hazards model to relative survival or cause-specific survival data, including estimates of joinpoint years at which survival trends have changed and trend measures in the hazard and cumulative survival scale. See Yu et al.(2009) <doi:10.1111/j.1467-985X.2009.00580.x>.

A highly configurable 'jQuery' plugin offering a simple
    interface to create complex queries/filters in 'Shiny'. The outputted
    rules can easily be parsed into a set of 'R' and/or 'SQL' queries and
    used to filter data. Custom parsing of the rules is also supported.
    For more information about 'jQuery QueryBuilder' see
    <https://querybuilder.js.org/>.

Client for 'jq', a 'JSON' processor (<https://jqlang.github.io/jq/>), 
    written in C. 'jq' allows the following with 'JSON' data: index into, parse, 
    do calculations, cut up and filter, change key names and values, perform 
    conditionals and comparisons, and more.