# 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.