micEcon (version 0.4-0)

translogCalc: 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.

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