Variable-class: S4 class with the main attributes of a variable

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

Description

Definition of an S4 class named Variable with its main attributes

Slots

UnitName

character vector of lenght 1 with the UnitName of the new variable to create.

IDDD

character vector of length 1 with the IDDD name of the new variable to create.

QualsValues

Named list with the names of the qualifiers of the new variable and their respective values.

Length

character vector of length 1 with the maximum length for the values of the variable.

ClassVar

character vector of length 1 with the class of the variable (numeric o character)

ValueRegExp

character vector of length 1 with the expression of right values for the variable.

Formula

with the character expression to calculate the new variable.

SlotName

character vector of length 1 with the name of the DD slot in which the new variable will be created.

Literal

character vector of length 1 with a comment for the variable.

DDversion

character vector of length 1 with the version of the DD.

Examples

Var <- new(Class = 'Variable', UnitName = 'LRTEmp',
                               IDDD = 'Employees',
                               QualsValues = list(ID = '', EmplType = ''),
                               Length = '8',
                               ClassVar = 'numeric',
                               ValueRegExp = '[.]+',
                               Formula = as.call(list('log( 1 + (Turnover / (Employees_1. + Employees_2.1.)))')),
                               SlotName = 'MicroData',
                               Literal = '',
                               DDversion = '1')

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