Description Usage Arguments Value Author(s) See Also Examples
Calculate the dependent variable of a translog function.
1 2 | translogCalc( xNames, data, coef, shifterNames = NULL,
dataLogged = FALSE )
|
xNames |
a vector of strings containing the names of the independent variables. |
data |
dataframe containing the data. |
coef |
vector containing all coefficients:
if there are |
shifterNames |
a vector of strings containing the names of the independent variables that should be included as shifters only (not in quadratic or interaction terms). |
dataLogged |
logical. Are the values in |
A vector containing the endogenous variable.
If the inputs are provided as logarithmic values
(argument dataLogged
is TRUE
),
the endogenous variable is returned as logarithm;
non-logarithmic values are returned otherwise.
Arne Henningsen
translogEst
and translogDeriv
.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 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$time <- c(1:20)
# estimate a Translog production function
estResult <- translogEst( "qOutput", c( "qLabor", "land", "qVarInput", "time" ),
germanFarms )
translogCalc( c( "qLabor", "land", "qVarInput", "time" ), germanFarms,
coef( estResult ) )
#equal to estResult$fitted
|
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https://r-forge.r-project.org/projects/micecon/
1 2 3 4 5 6 7 8
943.9667 975.9852 1060.6385 1145.4517 1188.1554 1206.2718 1236.5526 1292.7237
9 10 11 12 13 14 15 16
1196.9841 1281.0442 1362.2633 1542.6942 1575.6501 1699.6713 1632.7159 1618.6759
17 18 19 20
1678.3680 1741.8183 1887.9169 1992.8400
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