bcmmrmObject function

Fitted bcmmrm Object

Fitted bcmmrm Object

An object returned by the bcmmrm function, inheriting from class "bcmmrm" and representing the Box-Cox transformed MMRM analysis. Objects of this class have methods for the generic functions boxplot, coef, logLik, plot, print, and summary.

Returns

The following components must be included in a legitimate "bcmmrm" object.

  • call: a list containing an image of the bcmmrm

     call that produced the object.
    
  • median.mod, median.rob, median.mod.adj, median.rob.adj: lists including inference results for the model medians for all groups. Levels of the list are time points, where correspondence table is given as time.tbl$code. mod: model-based inference, rob: robust inference, adj: with empirical small sample adjustment.

  • meddif.mod, meddif.rob, meddif.mod.adj, meddif.rob.adj: lists including inference results for the for the model median differences between all pairs of groups (group1 - group0). Levels of the list are time points, where correspondence table is given as time.tbl$code. mod: model-based inference, rob: robust inference, adj: with empirical small sample adjustment.

  • lambda: a numeric value of estimates of the transformation parameter.

  • R: a correlation matrix for transformed outcomes.

  • betainf: inference results for beta under the assumption that lambda is known. Note that standard errors might be underestimated although statistical tests would be asymptotically valid.

  • time.tbl: a data frame of a correspondence table for the timepoints.

  • group.tbl: a data frame of a correspondence table for treatment groups.

  • inf.marg: a list with results of bcmarg

     function.
    
  • outdata: a data frame where the transformed outcome (ytr), the fitted values on the transformed scale (ytr.fitted), and the residuals on the transformed scale (res.tr) are added to input data.

  • conf.level: a numeric value of the specified confidence level.

See Also

bcmmrm

  • Maintainer: Kazushi Maruo
  • License: GPL (>= 2)
  • Last published: 2025-04-11

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