Choosing conversion factors

In GDPuc: Easily Convert GDP Data

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

The source argument

Use the source argument in convertGDP to control the source of the underlying conversion factors (GDP deflators, MERs and PPPs). This can be a user-defined object or one of the sources shipped with the package.

User-defined 'source' objects

Any tibble with columns:

• "iso3c" (character),
• "year" (numeric),
• "GDP deflator" (numeric),
• "MER (LCU per US$)" (numeric),
• "PPP conversion factor, GDP (LCU per international $)" (numeric)

can be used as a source of conversion factors.

library(GDPuc)

my_gdp <- tibble::tibble(
  iso3c = "USA", 
  year = 2010:2014, 
  value = 100:104
)

my_custom_source <- tibble::tibble(
  iso3c = "USA", 
  year = 2010:2014, 
  "GDP deflator" = seq(1, 1.1, 0.025),
  "MER (LCU per US$)" = 1,
  "PPP conversion factor, GDP (LCU per international $)" = 1,
)
print(my_custom_source)

convertGDP(
  gdp = my_gdp, 
  unit_in = "constant 2010 LCU", 
  unit_out = "constant 2014 Int$PPP",
  source = my_custom_source,
  verbose = TRUE
)

Shipped 'sources'

There are two source options shipped with the package, wb_wdi and wb_wdi_linked, with wb_wdi set as the default. Pass the name of a shipped source to the source argument to use it.

convertGDP(
  gdp = my_gdp, 
  unit_in = "constant 2010 LCU", 
  unit_out = "constant 2014 Int$PPP",
  source = "wb_wdi_linked",
  verbose = TRUE
)

Use the function print_source_info to print information on a specific, or all available sources.

print_source_info("wb_wdi")
print_source_info()

Use the ::: operator to take a closer look at sources shipped with GDPuc.

GDPuc:::wb_wdi

GDPuc documentation built on Sept. 11, 2024, 6:17 p.m.