calculate_hedonic_imputationmatrix: Calculate a matrix with hedonic imputation averages,...
In cbsREPS: Hedonic and Multilateral Index Methods for Real Estate Price Statistics

calculate_hedonic_imputationmatrix

R Documentation

Calculate a matrix with hedonic imputation averages, re-estimated time series imputation averages and corresponding index series.

Description

Based on a hedonic model, a series of imputed values is calculated in below steps: 1: for every period average imputed prices are estimated with the 1st period as base period. 2: the above is repeated for each possible base period. This result in an equal number of series as the number of periods. 3: All series are re-estimated with a time series model (state space). This step is optionally skipped with a parameter (state_space_model = NULL) 4: the series imputed values are transformed into index series. This matrix can be used for an index calculations according to the HMTS method.

Usage

calculate_hedonic_imputationmatrix(
  dataset,
  period_variable,
  dependent_variable,
  continuous_variables,
  categorical_variables,
  periods_in_year,
  number_of_observations = TRUE,
  production_since = NULL,
  number_preliminary_periods
)

Arguments

`dataset`	table with data (does not need to be a selection of relevant variables)
`period_variable`	variable in the dataset with the period
`dependent_variable`	usually the sale price
`continuous_variables`	vector with quality-determining continues variables (numeric, no dummies)
`categorical_variables`	vector with categorical variables (also dummy)
`periods_in_year`	if month, then 12. If quarter, then 4, etc. (default = 4)
`number_of_observations`	number of observations per period (default = TRUE)
`production_since`	1 period in the format of the period_variable. See description above (default = NULL)
`number_preliminary_periods`	number of periods that the index is preliminary. Only works if production_since <> NULL. default = 3

Details

Parameter 'production_since': To simulate a series, where 1 period a time expires (as in production), a manual choice in the past is possible. Until this period, all periods are imputed. After that, 1 period is added.

Value

$Matrix_HMTS_index table with index series based on estimations with time series re-estimations $Matrix_HMTS table with estimated values based on time series re-estimations $Matrix_HMS_index table with index series based on estimations with the hedonic model $Matrix_HMS table with estimated values based on the hedonic model $Matrix_HMTS_analysis table with analysis values of the time series model per base period