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MLEcens (version 0.1-7.1)

Computation of the MLE for Bivariate Interval Censored Data

Description

We provide functions to compute the nonparametric maximum likelihood estimator (MLE) for the bivariate distribution of (X,Y), when realizations of (X,Y) cannot be observed directly. To be more precise, we consider the situation where we observe a set of rectangles in R^2 that are known to contain the unobservable realizations of (X,Y). We compute the MLE based on such a set of rectangles. The methods can also be used for univariate censored data (see data set 'cosmesis'), and for censored data with competing risks (see data set 'menopause'). We also provide functions to visualize the observed data and the MLE.

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Version

Install

install.packages('MLEcens')

Monthly Downloads

2,117

Version

0.1-7.1

License

GPL (>= 2)

Maintainer

Marloes Maathuis

Last Published

September 21st, 2024

Functions in MLEcens (0.1-7.1)

reduc

Determine areas of possible mass support of the MLE
plotCM

Plot a clique matrix
plotRects

Plot a set of rectangles
real2canon

Transform a set of rectangles into canonical rectangles
menopauseMod

Modified menopause data
plotDens1

Create a univariate density plot of the MLE
plotDens2

Create a bivariate density plot of the MLE
plotHM

Plot a height map
canon2real

Transform (intersections of) canonical rectangles back to their original coordinates
plotCDF1

Create a marginal CDF (or survival function) plot of the MLE
computeMLE

Compute the MLE for bivariate censored data
plotCDF2

Create a bivariate CDF (or survival function) plot of the MLE
actg181

Data from the Aids Clinical Trials Group protocol ACTG 181
actg181Mod

Modified data from the Aids Clinical Trials Group protocol ACTG 181
menopause

Menopause data
cosmesis

Breast cosmesis data
ex

Example data set (artificial)