BuildVNC: Constructor of objects of class VarNameCorresp

In david-salgado/StQ: Tools to manage metadata-incorporated key-value pair datasets

Description

This constructor returns an object of class VNC. The input parameter is a named list of objects of class data.table. Notice that the names of this list must be any of 'ID', 'MicroData', 'ParaData', 'Aggregates', 'AggWeights', 'Other' or compound names with these roots (e.g. ParaData_Editing).

Usage

BuildVNC(
  Data = list(ID = data.table(IDQual = character(0), NonIDQual = character(0), IDDD =
    character(0), UnitName = character(0), InFiles = character(0)), MicroData =
    data.table(IDQual = character(0), NonIDQual = character(0), IDDD = character(0),
    UnitName = character(0), InFiles = character(0)))
)

Arguments

Data	A named list of objects of class data.table.

Value

An object of class VarNameCorresp with components specified in the input parameter Data. Components 'ID', 'MicroData' and/or 'ParaData' not being specified are set as an empty data.table.

Examples

library(data.table)
VarList <- list(
  ID = data.table(IDQual = c('NumIdEst', rep('', 4)),
                  NonIDQual = rep('', 5),
                  IDDD = c('', 'Name', 'Surname', 'PostalAddr', 'PhoneNo'),
                  NumIdEst = c('', rep('.', 4)),
                  UnitName = c('numidest', 'nombre', 'apellidos', 'direccion', 'telefono'),
                  InFiles = rep('FI', 5)),
  MicroData = data.table(IDQual = c('NumIdEst', rep('', 2)),
                         NonIDQual = c('', 'Market', ''),
                         IDDD = c(rep('', 2), 'NewOrders'),
                         NumIdEst = c(rep('', 2), '.'),
                         Market = c(rep('', 2), '1.'),
                         UnitName = c('numidest', '', 'cp09'),
                         InFiles = rep('FF, FD, FG', 3)))
                     
VNC <- BuildVNC(VarList)
VNC

#Notice that it is indeed an object with complex structure:
str(VNC)

david-salgado/StQ documentation built on Aug. 12, 2021, 3:23 p.m.