translogCalc {micEcon}R Documentation

Calculate dependent variable of a translog function

Description

Calculate the dependent variable of a translog function.

Usage

   translogCalc( xNames, data, allCoef, quadHalf = TRUE, logValues = FALSE  )

Arguments

xNames a vector of strings containing the names of the independent variables.
data dataframe containing the data.
allCoef vector containing all coefficients.
quadHalf logical. Multiply the quadratic terms by one half?
logValues logical. Are the values in data already logged?

Value

a vector containing the endogenous variable.

Author(s)

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

See Also

translogEst and translogDeriv.

Examples

   data( germanFarms )
   # output quantity:
   germanFarms$qOutput <- germanFarms$vOutput / germanFarms$pOutput
   # quantity of variable inputs
   germanFarms$qVarInput <- germanFarms$vVarInput / germanFarms$pVarInput
   # a time trend to account for technical progress:
   germanFarms$time <- c(1:20)

   # estimate a quadratic production function
   estResult <- translogEst( "qOutput", c( "qLabor", "land", "qVarInput", "time" ),
      germanFarms )

   translogCalc( c( "qLabor", "land", "qVarInput", "time" ), germanFarms,
      estResult$allCoef )
   #equal to estResult$fitted

[Package micEcon version 0.3-9 Index]