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valid_PPPratio() calculates the PPP-ratio, which shows the variation coefficient representing variability across products and across countries.

Usage

valid_PPPratio(
  df,
  Year = "Year",
  `Product code` = "Product code",
  Country = "Country",
  `Average price of product` = "Average price of product"
)

Arguments

df

add

Year

add

`Product

code` add

`Country`

add

`Average

price of product` add

Details

  • The (country) variation coefficient row measures the standard deviation of the product PPPs for each country, thereby highlighting countries with the highest variability.

  • The (product) variation coefficient column measures the standard deviation among the PPP ratios for each product.