Changes in version 2.2.1 (2023-09-05)                  

    o   Add references.

                 Changes in version 2.2.0 (2023-05-01)                  

    o   fixed a typo in calculating the confidence itervals using
	randomization test.

                 Changes in version 2.1.0 (2022-11-30)                  

    o   Adapted the function getData to a version for covariates with
	multiple levels without adding any input parameters.

                 Changes in version 2.0.2 (2021-10-16)                  

    o   Rectified some issues.

                 Changes in version 2.0.1 (2021-10-02)                  

    o   Rectified the error in print.carandom about misplacement
	between the mean absolute within-stratum imbalance and the mean
	absolute within-covariate-margin imbalance.

                  Changes in version 2.0 (2021-09-23)                   

    o   Some modifications were added to Remark Index to fixed some
	issues, including modifications in functions of print.carandom,
	and print.careval.

                  Changes in version 1.5 (2021-07-25)                   

    o   Some modifications were added to Remark Index, including
	modifications in functions of nameString, PreProcess,
	print.carandom, and print.careval.

                  Changes in version 1.4 (2020-09-26)                   

    o   References were added to the man files.

    o   The modification is consistent with the OpenMP-supported
	version in (carat).

                  Changes in version 1.3 (2020-09-08)                   

    o   A small modification was added to the function evalRand.

    o   The modification is consistent with the OpenMP-supported
	version in (carat).

                  Changes in version 1.2 (2020-08-31)                   

    o   A our own defined class plotrandtest was added and applied to
	the function rand.test.

    o   The option plot was delected in rand.test.

    o   Character strings were directly used as arguments values for
	method and test of the testing functions and getData.

    o   We standardized the usual function to check if an object has
	from a specific class in the function compRand, using is().

    o   We corrected the man pages of the corresponding randomization
	functions, such as PocSimMIN.

    o   The underlying S3 methods are not exported to users.

    o   The generation of names vector in getData was altered.

    o   All of the modifications are consistent with the
	OpenMP-supported version in (carat).

                  Changes in version 1.1 (2020-05-16)                   

    o   A small modification was added to the function getData.

                  Changes in version 1.0 (2020-05-07)                   

    o   This version is the released version of carat.

    o   Due to the limitation of R on OpenMP, the OpenMP-supported
	version, named caratOMP, can be loaded via (carat).