bennet {PriceIndices} | R Documentation |
Calculating the Bennet price and quantity indicators
Description
This function returns the Bennet price and quantity indicators and optionally also the price and quantity contributions of individual products.
Usage
bennet(
data,
start,
end,
interval = FALSE,
matched = FALSE,
contributions = FALSE,
prec = 2
)
Arguments
data |
The user's data frame with information about sold products. It must contain columns: |
start |
The base period (as character) limited to the year and month, e.g. "2020-03". |
end |
The research period (as character) limited to the year and month, e.g. "2020-04". |
interval |
A logical parameter indicating whether calculations are to be made for the whole time interval (TRUE) or no (FALSE). |
matched |
A logical parameter indicating whether the matched sample approach is to be used (if yes, the parameter has the value TRUE). |
contributions |
A logical parameter indicating whether contributions of individual products are to be displayed. If it is |
prec |
A numeric vector indicating precision, i.e. the number of decimal places for presenting results. |
Value
This function returns the Bennet price and quantity indicators and optionally also the price and quantity contributions of individual products.
References
Bennet, T. L., (1920). The Theory of Measurement of Changes in Cost of Living. Journal of the Royal Statistical Society, 83, 455-462.
Examples
bennet(milk, "2018-12", "2019-12", matched=TRUE, contributions=TRUE)
bennet(coffee, start="2018-12", end="2019-03", interval=TRUE)