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rwicc (“Regression With Interval-Censored Covariates”)
is an R software package implementing an analysis for a regression model
involving an interval-censored covariate, as described in “Regression
with Interval-Censored Covariates: Application to Cross-Sectional
Incidence Estimation” by Morrison, Laeyendecker, and Brookmeyer
(Biometrics, 2021): https://onlinelibrary.wiley.com/doi/10.1111/biom.13472.
This analysis uses a joint model for the distributions of the outcome of interest and the interval-censored covariate, which is treated as a latent variable; the model parameters are estimated by maximum likelihood using an EM algorithm. The submodel used for the distribution of the interval-censored covariate is somewhat specific to the application of interest (estimation of the mean duration of a biomarker-defined window period for cross-sectional incidence estimation), so this package may not be immediately applicable to other problems. We are publishing it with the goal of making the results in our paper easier to reproduce and with the hope that others might adapt pieces of this code for their own applications. Please feel free to contact us with any questions about the code or the paper!
You can install the current released version from CRAN with:
install.packages("rwicc")You can install the development version from GitHub with:
install.packages("devtools")
devtools::install_github("d-morrison/rwicc")See: https://d-morrison.github.io/rwicc/articles/how-to-use-rwicc.html
Please note that the rwicc project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.