quantityIndex {micEcon}R Documentation

Calculate Quantity Indices

Description

Calculates a Laspeyres, Paasche or Fisher Quantity index.

Usage

quantityIndex( prices, quantities, base, data, method = "Laspeyres",
   na.rm = FALSE, na.0 = FALSE, weights = FALSE )

Arguments

prices Vector that contains the names of the prices.
quantities Vector that contains the names of the quantities that belong to the prices.
base The base period(s) to calculate the indices (see details).
data Dataframe that contains the prices and quantities.
method Which quantity index: "Laspeyres", "Paasche" or "Fisher".
na.rm a logical value passed to 'mean()' when calculating the base.
na.0 logical. Setting all NA values to 0 (after calculating the base)?
weights logical. Should an attribute 'weights' that contains the relatives weights of each quantity be added?

Details

The argument base can be either
(a) a single number: the row number of the base prices and quantities,
(b) a vector indicating several observations: The means of these observations are used as base prices and quantities, or
(c) a logical vector with the same length as the data: The means of the observations indicated as 'TRUE' are used as base prices and quantities.

Value

a vector containing the quantity indices.

Author(s)

Arne Henningsen ahenningsen@agric-econ.uni-kiel.de

See Also

quantityIndex.

Examples

   data( Missong03E7.7 )
   # Laspeyres Quantity Indices
   quantityIndex( c( "p.beef", "p.veal", "p.pork" ),
      c( "q.beef", "q.veal", "q.pork" ), 1, Missong03E7.7 )
   # Paasche Quantity Indices
   quantityIndex( c( "p.beef", "p.veal", "p.pork" ),
      c( "q.beef", "q.veal", "q.pork" ), 1, Missong03E7.7, "Paasche" )

   data( Bleymueller79E25.1 )
   # Laspeyres Quantity Indices
   quantityIndex( c( "p.A", "p.B", "p.C", "p.D" ), c("q.A", "q.B", "q.C", "q.D" ),
      1, Bleymueller79E25.1 )
   # Paasche Quantity Indices
   quantityIndex( c( "p.A", "p.B", "p.C", "p.D" ), c("q.A", "q.B", "q.C", "q.D" ),
      1, Bleymueller79E25.1, "Paasche" )

[Package micEcon version 0.5-1 Index]