2013-12-09 Sy Han Chiou <schiou@d.umn.edu>
	* summary with B = 0
	* print aftsrr
	* changes in responds to JSS revision
	
2013-10-25 Sy Han Chiou <schiou@d.umn.edu>
	* Rename smoothrr with aftsrr
	* Code clearned
	* add method to aftsrr

2013-09-24 Sy Han Chiou <schiou@d.umn.edu>
	* Added Iterative approach with monotone function

2013-07-16 Sy Han Chiou <schiou@d.umn.edu>
	* Modified the smoothrr function so that no matter intercept is specified, smoothrr only analyze without intercept
	* Some Generic functions (coef, vcov, residuals) were added

2013-05-26
	* Case cohort weight applied to least square approach
	* General weights with gehan's estimating equation

2013-05-15  Sy Han Chiou <steven.chiwqou@uconn.edu>
	* Changed contact eamil from steven.chiou@huskymail.uconn.edu to steven.chiou@uconn.edu
	* Argument ID is no longer required by when cluster sizes are one

2013-04-12  Sy Han Chiou <steven.chiou@uconn.edu>
	* added extension to GP weight
	* removed gehan weight in PW

2013-03-19  Sy Han Chiou <steven.chiou@uconn.edu>
	* added iterative procedure for general weights in rank-based approach.
	* added gehan weight in PW

2013-01-02  Sy Han Chiou <steven.chiou@uconn.edu>
	* report the sample beta used in MB
	* changes to pass R 2.15.2

2012-10-17  Sy Han Chiou <steven.chiou@uconn.edu>
	* More changes in CF

2012-10-13  Sy Han Chiou <steven.chiou@uconn.edu>
	* Some names changed, arguments' order re-arranged
	* CF for clustered data

2012-09-26  Sy Han Chiou <steven.chiou@uconn.edu>
	* Minor fix

2012-09-19  Sy Han Chiou <steven.chiou@uconn.edu>
	* Names changed for variance, rank and initial.
	* Fixed estimating equations for multivariate.
	* Fixed summary display.

2012-08-12  Sy Han Chiou <steven.chiou@uconn.edu>
	* Names changed for variance, rank and initial.

2012-07-12  Sy Han Chiou <steven.chiou@uconn.edu>
	* Added Prentice-Wilcoxon weight
	* Sandwich variance estimator for multivariate

2012-06-21  Sy Han Chiou <steven.chiou@uconn.edu>
	* For aftgee function, added lsonly switch.

2012-06-18  Sy Han Chiou <steven.chiou@uconn.edu>
	* Added case-cohort weights for aftgee function.
	* Fixed prepX function
	* Fixed interception issue
	* Added warnings

2012-06-06  Sy Han Chiou <steven.chiou@uconn.edu>
	* Replace "nfsane" by "BBsolve"
	* Output whether An is invertible

2012-05-19  Sy Han Chiou <steven.chiou@uconn.edu>
	* Added closed form variance estimation, zlc, hc, isc, for "logrank"

2012-05-15  Sy Han Chiou <steven.chiou@uconn.edu>
	* Added converage at output

2012-05-15  Sy Han Chiou <steven.chiou@uconn.edu>
	* Added "logrank" weight
	* Package depend on library(BB)
	* Variance estimation for "logrank" fixed for "mult", "zle" and "ise".

2012-05-07  Sy Han Chiou <steven.chiou@uconn.edu>
	* Huang's approach with non smoothed estimating equation does not seem to have a converaged solution, this might due to the scales/order.
	* SiFun, sfun, etc are modiflied based on our paper.

2012-05-04  Sy Han Chiou <steven.chiou@uconn.edu>
	* Huang's approach with smoothed estimating equation.
	* Zeng and Lin with non smoothed estimating equation.

2012-05-01  Sy Han Chiou  <steven.chiou@uconn.edu>
	* Intend to add log-rank weight.
	* H and ZL on non-smoothed estimating equation.

2012-04-22  Sy Han Chiou  <steven.chiou@uconn.edu>
	* Modified aftgee.est so that margin can be at no specific order.
        * Added nwtco example.
