Stepwise covariate search

  1. Copy the model object into a new object and accept final parameter estimates from fitting run as initial estimates.

    2.   covariateModel <- copyModel (model , acceptAllEffects = TRUE
                     , modelName = paste0 ( ModelName , " _CovariateSearch "))

  2. Add covariates to base model.

    3.   covariateModel <- covariateModel %>%
         addCovariate ( covariate = c( Sex = " Gender "), effect = "Cl"
                   , type = " Categorical "
                   , levels = c(0, 1) , labels = c(" female ", " male ")) %>%
         addCovariate ( covariate = " Age ", effect = "V") %>%
         addCovariate ( covariate = c(BW = " BodyWeight ")
                   , effect = c("V", "Cl")
                   , center = " Value ", centerValue = 70)

  3. Run Stepwise Covariate Search.

    4.   covariateJob <- stepwiseSearch ( covariateModel )

  4. Load and view the model selected by stepwise covariate search.

  stepwiseLines <- readLines ( paste0 (
     covariateModel@modelInfo@workingDir ,"/ Stepwise . txt "))
  print ( stepwiseLines [ grep (" Scenario to use = ", stepwiseLines )])

Last modified date:12/17/20
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