In southwick-associates/implan: Work with Implan Data

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)
library(dplyr)
library(implan)

Overview

The implan package includes some data and functions to help update category-sector crosswalks between implan sectoring schemes (e.g., version 536 to 546). Note that the included function provides a direct crosswalk update and doesn't do any respecification (for example if the market basket of goods changes).

Master Sector Schemes

The master sectoring schemes (category to sector) are stored on Office 365: Implan > Sectoring Schemes.

Pull Data

The 536to546 crosswalk file has been included in this package. I did some pre-processing to get the crosswalk data into a more useful format (code here).

library(dplyr)
library(implan)

data("sector536_to_sector546")
glimpse(sector536_to_sector546)

Note that the CewAvgRatio variable from the raw data was renamed to crosswalk_ratio. This variable was used for the small number of cases when 536 sectors were expanded to multiple sectors in the 546 scheme.

check_share_sums(sector536_to_sector546, crosswalk_ratio, group, sector536)

We need the 536 sectoring scheme for the update, an example of which has been included in this package:

data("category_to_sector536")
glimpse(category_to_sector536)

The sector_update() function converts from one sectoring scheme to the next.

data("sectors546")
category_to_sector546 <- sector_update(
    scheme_old = category_to_sector536, 
    crosswalk = sector536_to_sector546, 
    description_new = sectors546
)
glimpse(category_to_sector546)