R/NestedImputationList.R

In miceadds: Some Additional Multiple Imputation Functions, Especially for 'mice'

## File Name: NestedImputationList.R
## File Version: 0.17

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# list of nested of multiply imputed datasets
NestedImputationList <- function(datasets)
{
    CALL <- match.call()
    Nimp <- c( length(datasets), length(datasets[[1]] ) )
    names(Nimp) <- c("Between", "Within")
    rval<-list(imputations=datasets, "Nimp"=Nimp)
    class(rval)<-"NestedImputationList"
    rval$call <- CALL
    attr(rval,"nobs") <- nrow(datasets[[1]][[1]])
    attr(rval,"nvars") <- ncol(datasets[[1]][[1]])
    return(rval)
}

#**************** print method ***********************
print.NestedImputationList <- function(x,...)
{
    cat("Object of class 'NestedImputationList'\nCall: ")
    print( x$call )
    v1 <- paste0( "NMI data with ", x$Nimp[1]," between datasets and ",
            x$Nimp[2], " within datasets\n")
    cat(v1)
    v1 <- paste0( attr(x,"nobs"), " cases and ",
    attr(x,"nvars"), " variables \n" )
    cat(v1)
}
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