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Interval Data Constructor

Source: R/intData_class.r
intData.Rd

Constructs an interval data object.

Usage

intData(
  Data,
  Seq = c("AllLb_AllUb", "AllCen_AllRng", "LbUb_VarbyVar", "CenRng_VarbyVar"),
  LatentParam = NULL,
  LatentCase = c("U_id_symmetric", "U_id", "General"),
  LatentDist = c("Unif", "Triang", "TNorm", "InvTri", "Beta", "KDE", "Degenerated"),
  TriangParam = 0,
  BetaParam.a = 1,
  BetaParam.b = 1,
  Umicro = NULL,
  estimate.DistParam = FALSE,
  VarNames = NULL,
  ObsNames = row.names(Data),
  NbMicroUnits = integer(0)
)

Arguments

Data

A data frame or matrix containing the data.

Seq

Format of macrodata if it is a data frame or matrix. Available options are:

  • "AllLb_AllUb": All lower bounds followed by all upper bounds, in the same variable order.

  • "AllCen_AllRng": All Centers followed by all Ranges, in the same variable order.

  • "LbUb_VarbyVar": Lower bounds followed by upper bounds, variable by variable.

  • "CenRng_VarbyVar": Centers followed by Ranges, variable by variable.

LatentParam

A list with the parameters of the latent variables.

LatentCase

A string specifying which of the three scenarios applies to the latent variables:

  • "General": The case where the latent variables do not have any nice properties.

  • "U_id": The case where the latent variables are identically distributed.

  • "U_id_symmetric": The case where the latent variables are identically distributed and symmetric.

Defaults to "U_id_symmetric".

LatentDist

A string or vector of strings specifying the distribution(s) of the latent variables. If the variables are identically distributed it can be one of ("Unif","Triang","TNorm","InvTri","Beta","KDE","Degenerated"), if not a vector must be provided with the distribution for each variable.

TriangParam

Mode of the triangular distribution. If the latent variables are identically distributed, it is only necessary to provide a number, if not a vector is needed. The default is 0.

BetaParam.a

Parameter alpha of the Beta distribution. If the latent variables are identically distributed, it is only necessary to provide a number, if not a vector is needed. The default is 1.

BetaParam.b

Parameter beta of the Beta distribution. If the latent variables are identically distributed, it is only necessary to provide a number, if not a vector is needed. The default is 1.

Umicro

Latent microdata observations. Needed if LatentDist="KDE" or estimate.DistParam=TRUE.

estimate.DistParam

Logical parameter indicating if estimation of the parameters of the latent distributions should be performed. Can only be set to TRUE if LatentCase="General". The default is FALSE.

VarNames

A character vector of variable names.

ObsNames

A character vector of observation names.

NbMicroUnits

An integer specifying the number of micro units.

Value

An object of class intData.

References

Oliveira, M. R., Pinheiro, D., & Oliveira, L. (2025). Location and association measures for interval-valued data based on Mallows' distance. arXiv preprint arXiv:2407.05105. https://arxiv.org/abs/2407.05105

Adapted from package MAINT.Data (https://cran.r-project.org/package=MAINT.Data).