missingness: Missing values

In ForImp: Imputation of Missing Values Through a Forward Imputation Algorithm

Description

Summary for the missing values in a matrix

Usage

missingness(mat)

Arguments

mat	a matrix/dataframe with missing values

Details

The function provides a summary for the missing values in a matrix (units for variables)

Value

number_of_missing_values	Total number of missing values in the matrix
missing_values_per_unit	Number of units with a certain number of missing values
missing_values_per_variable	Number of missing values for each variable

Author(s)

Alessandro Barbiero, Giancarlo Manzi, Pier Alda Ferrari

Examples

n<-100
m<-3
mat<-matrix(rnorm(n*m),n,m)
nummissing<-50
index<-sample(n*m,nummissing,replace=FALSE)
mat[index]<-NA
missingness(mat)

ForImp documentation built on May 2, 2019, 8:17 a.m.