2.2-5: (May 13, 2013) * Gompertz, ltx: Too long lines in the documentation fixed. 2.2-4: (May 13, 2013) * phreg: The gompertz 'scale' parameter is now a real scale parameter through a reparametrization of the baseline gomperz distribution. It follows now the 'canonical' parametrization. There is also a new argument, 'param', which can take the values "canonical" (default) and "rate". Better start values for the Gompertz regressions. * check.dist : Has failed due to different scaling in coxreg and phreg since 2.2-2. Now fixed. 2.2-3: (April 17, 2013) * risksets: Added an argument, 'members', a logical with default value 'TRUE'. If TRUE, the members of all risk sets are returned. With huge data sets, this may be too much, and not wanted. In such cases, set 'members = FALSE'. * coxreg: Memory leaks fixed in getHaz.f, sizes.c and risk.c. 2.2-2: (March 23, 2013) * phreg: argument 'center' deprecated; centering of covariates is done internally, but uncentered results reported. If you want centered results, center covariates yourself! 2.2-1: (November 6, 2013) * weibreg, phreg, aftreg: Error messages refreshed. 2.2-0: (October 30, 2012) * ltx is made generic, with methods for coxreg, phreg, and aftreg 2.1-3: (September 6, 2012) * Gompertz distribution: new parameter 'param'; values 'default' (default, nothing changes), and 'canonical', which gives meaning 'PH' and 'AFT' to the shape and scale parameters, respectively. * aftreg: New input argument: 'param', with three values, 'default' (which is the default;), 'survreg', and 'canonical'. The value 'default' uses the standard parametrization, while 'survreg' uses the same parametrization as the survreg function in the survival package. 'canonical' is especially useful in the Gompertz distribution for separating PH and AFT parameters. 2.1-2 (August 30, 2012) * glmmboot, glmmbootFit: Reduced the numbers of iterations in the examples. 2.1-1 (August 29, 2012) * aftreg: There was a bug when using 'dist="gompertz"' and the 'id' argument with more than one record per id. This is now hopefully solved. 2.1-0 (June 25, 2012) * glmmML: Added the gamma distribution to the possible priors in the case of the Poisson model. 2.0-7 (January 3, 2012) * C code cleaned (avoiding some Warnings at CRAN). * check.dist: New argument, col, added. Default is now black-and-white plotting. 2.0-6 (December 9, 2011) * plot.Surv: Can now handle missing values in strata variable (by deleting corresponding cases!) 2.0-5 (October 13, 2011) * ltx: New function for printing coxreg fits in latex format. * plot.Surv: New arguments, col and lty, added. The default is now black-and-white plotting. * data: Two new data sets, "logrye" and "scania". 2.0-4 (August 27, 2011) * oldmort: Data set updated. * aftreg.fit: Errors in documentation corrected. 2.0-3 (August 12, 2011) * SurvSplit: Bug fixed. It works now. * glmmboot: Bug in calculation of 'frail' fixed. * plot.phreg: Bug in argument 'ylim' fixed. Bug with stratified fits fixed. * aftreg, phreg: summary method added (just printing). 2.0-2 (August 8, 2011) * coxreg: 'x = TRUE' now really returns the design matrix. 2.0-1 (August 7, 2011) * sw_fun: C function (internal) now declared and defined. 2.0 (August 6, 2011) * glmmML: Merged into eha. This adds binary and count data regression for clustered data to eha. glmmML is still a standalone package on CRAN, for how long remains to be seen. * Pch: New class of distributions; Piecewise constant hazards (Pch). * phreg: piecewise constant baseline hazard function introduced. * phreg: 'center' reinstalled as a logical, default = TRUE, so nothing changes if 'center' is left untouched. * age.window: If the selected window is empty, an error was previously thrown. Now NULL is returned, with a warning. * cal.window: Now returns NULL, with a warning, if the selected window is empty. 1.4 (June 26, 2011) * aftreg: Gompertz distribution added (back again). Better start values. * phreg: Better start values for Gompertz distribution. 1.3-7 (June 20, 2011) * eha: Depends (R >= 2.13.0) * phreg, aftreg, weibreg: Errors in documentation corrected. * ChangeLog: Errors in 1.3-6 corrected. 1.3-6 (June 18, 2011) * coxph, phreg, aftreg: Bug fix: Logical covariates now OK. (converted to factor). * phreg: Removed "coxph" from "class". * aftreg: Ditto. * weibreg: Ditto. * oldmort: New data set. * coxreg: added return values 'df' and 'n'. * coxreg, phreg, aftreg: Added extractAIC and nobs methods. 1.3-5 (May 20, 2011) * infants: New data set containing matched data on infant and maternal mortality. 1.3-4 (May 10, 2011) * toBinary: Now includes also risksets without survivors (if any). * fert: Row names changed to row numbers. * swe07: New data set. * Spelling errors (some!) corrected in documentation. 1.3-3 (May 4, 2011) * male.mortality: Old name (male.mortality) of data frame mort reinstalled. Now known under two names. Overlapping spells no longer exist. * fert: Documentation corrected. * toDate: Now works as intended. 1.3-2 (March 1, 2011) * dllogis: Bug fixed. * hllogis: Bux fixed. 1.3-1 (January 15, 2011) * phreg: Fixed error and (some) numerical instability in the estimation of the Gompertz proportionla hazards model (seems to be very sensitive to good start values!). * plot.phreg: Fixed 'ylim' for cumulative hazards plot. * male.mortality: Data set renamed to * mort: The new name. (Just for convenience!) 1.3-0 (January 4, 2011) * coxreg: Major revision, calls 'coxph' in 'survival' (thanks to Terry Therneau!) for ordinary requests. Reason: speed. The argument 'center' is deprecated, centering of covariates is now routinely made. Affects the estimation of the baseline hazard, which is done at the means of the columns of the original design matrix. * phreg: Argument 'center' is deprecated. Centering is routinely performed, so the baseline hazard is estimated at the means of the columns of the original design matrix. * aftreg: Corrected error in documentation and made the argument 'center' deprecated. * aftreg: Estimation of intercept ("scale") is now comparable with corresponding estimate of Intercept in 'survreg'. 'shape' in aftreg is still '1 / scale' in survreg. Regression coefficients still have different signs but the same absolute values. * join.spells: a few bugs fixed, now allows for factor covariates. * male.mortality: data set "joined". * fert: is a new data set. Contains data on 19th century marital fertility from a parish in northern Sweden. 1.2-18 (February 28, 2010) * aftreg.fit: Check of data consistency in case of more than one record per individual added. * aftreg.fit: Fixed memory allocation bug in C code. This bug was not fatal (too much memory was allocated), but caused a severe performance problem, especially on Windows. 1.2-17 (February 23, 2010) * aftreg: 'dist = "gompertz"' should now work (realizing that it is a special case of 'dist = "EV"). * phreg: Fixed bugs for the cases with fixed shape (includes 'dist = "gompertz"'. * aftreg: 'offset' works now. * phreg: Ditto. * check.dist: Bug fixed for 'dist = "gompertz"' (again!) * plot.phreg: Ditto. 1.2-16 (February 19, 2010) * aftreg: 'dist = "gompertz"' is unreliable, so changed the example and added a note with a warning. Is also an item on the ToDo list now. 1.2-15 (February 18, 2010) * aftreg: argument 'id' now works as intended, i.e., is looked for in 'data' (or 'parent.frame()') * print: functions return invisibly 'x'. * coxreg: argument 'weights' now works as intended, i.e., is looked for in 'data' (or 'parent.frame()') 1.2-14 (October 29, 2009) * check.dist: Bad 'ylim' fixed. * aftreg: Gompertz distribution had a bug; now fixed. 1.2-13 (October 26, 2009) * plot.coxreg: Bug fixed in call to plot.hazdata (wrong order of args). 1.2-12 (October 15, 2009) * aftreg: Works now for time-varying covariates. Not polished. 1.2-7 (August 13, 2009) * coxreg: Time-dependent offset introduced. 1.2-6 (August 11, 2009) * coxreg.fit: Time-dependent weights work now. 1.2-5 (August 2, 2009) * coxreg: Added (time-varying) weighted Cox regression. Returns error code 1 if failure, with a warning. * check.dist: Can now handle stratified models. 1.2-4 (Jan 12, 2009) * Bugs in qEV, rEV, all Gompertz functions, plus documentation of EV and Gompertz fixed. Note that these bugs did not affect aftreg or phreg! However, * check.dist had to be revised due to the above bugs. 1.2-2 (Aug 25, 2008) * Bug in coxreg, method = "ml" fixed. * Bug in coxreg, calculation of hazard, fixed. * Several errors in the documentation fixed. 1.2-0 (Jul 18, 2008) * Added functionality: Accelerated failure time models with several distributions, parametric proportional hazards models with the same distributions. All models allow for left truncated and right censored data, as well as for stratification. Plot methods for the new models. 1.0-1 (Jan 5, 2008) * Added 'risktime' to toBinary output. 0.99 (June 9, 2007) This is the last release before version 1.0! * Added full profiling to the "ml" and "mppl" methods in coxreg. * mlreg is now deprecated. Use coxreg with method = ml or = mppl 0.98 0.97 0.96-7 (Dec 29, 2006) * Corrected a bug in the documentation of 'weibreg'. 0.96-6 (Dec 28, 2006) * Corrected a bug in weibreg concerning 'center = FALSE'. 0.96-5 (Oct 24, 2006) * added a 'terms' object to the output of coxreg and mlreg. 0.96-1 (May 15, 2006) * plot.Surv improved. Suggestions by Dimitri Szerman. (Thanks!) 0.96-0 (April 14, 2006) * Weibull regression updated; It is now possible to fit a Weibull model to left-truncated and right-censored data without covariates. A small error in the documentation of 'weibreg' corrected. 0.94-3 (Aug 22, 2005) * 'check.surv': If the 'id' was a factor with unused labels, the result was unpredictable. Corrected. 0.94-2 (Jun 27, 2005) * Errors in the documentation of 'weibreg' corrected. 0.93-0 (Sep 20, 2004) * NAMESPACE introduced for R-2.0.0. 0.92-4 (May 5, 2004) * coxreg: 'Error' changed to 'warning' for a singular hessian, in which case the new return value is NULL. 0.92-3 (March 19, 2004) * table.events: New parameter: 'strict = TRUE'. * make.communal: In case of 'communal=FALSE', spells are no longer truncated. Instead a value of NA is given if birthdate is out of range. Previous behavior was unpredictable when birthdate was out of range. 0.92 (November 12, 2003) * mlreg: Geometric distribution (i.e., constant baseline discrete hazard) added. Not for frailty models, yet (on the TODO list). * mlreg: New argument, 'n.points', added to 'control'. Controls the number of points used in the Gauss-Hermite quadrature. * mlreg: Stricter control of numerical problems, especially in the frailty fit. * clean: Replaced by check.spells and join.spells. * Return values changed to conform with R-1.8.0 (and later).