calculate_hedonic_imputationmatrix {cbsREPS}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

Author(s)

Farley Ishaak


[Package cbsREPS version 0.1.0 Index]