NEWS.md

In ipwCoxCSV: Corrected Sandwich Inference for Inverse Probability Weighted Cox Models

ipwCoxCSV 1.2

• Added support for calculating p-values.

• Updated missing-data handling: added support for complete-case analysis, with a warning message displayed when missing observations are detected in variables used in the analysis.

• Fixed a bug in a derivative factor used for ATT inference.

ipwCoxCSV 1.1

• Added Authors@R field to DESCRIPTION to address the CRAN check NOTE.

• Added the DOI for the paper proposing the corrected sandwich variance method.

• Added support for estimating the average treatment effect in the treated (ATT) using ATT weights.

• Added a check to identify and remove covariates with the same value across all observations, as they do not contribute to propensity score estimation.

• Added an error message for missing data.

• Updated the package and function descriptions.

• Generalized the code to handle categorical and factor covariates directly, eliminating the need for users to convert them to dummy variables before analysis.

• Simplified some matrix calculation code.

ipwCoxCSV 1.0

• Initial CRAN release.

ipwCoxCSV documentation built on Aug. 20, 2026, 1:07 a.m.