Added error message to extent.of.irregularity for when formula and/or ncutpts are not specified in the absence of scheduled visit times
made use of data.table package when lagging variables and adding censored rows
Bug fixes
extent.of.irregularity previously only allowed the time variable to be called “time”; this has now been fixed
IrregLong 0.3.3
CRAN release: 2020-08-24
Minor changes
due to archival of the frailtypack package, frailty models are now estimated using coxph rather than frailtyPenal
IrregLong 0.3.2
CRAN release: 2020-06-24
Bug fixes
iiw.weights failed to consider the interval between last observed visit and end of follow-up time when maxfu was supplied as a single number. This has been fixed.
IrregLong 0.3.1
CRAN release: 2020-05-23
Bug fixes
Fixed a coding error that led extent.of.irregularity to fail when scheduledtimes was provided.
IrregLong 0.3.0
CRAN release: 2020-05-01
Major changes
Added function (extent.of.irregularity) to provide graphical and numeric summaries of the extent of irregularity.
Minor changes
Added an option in the Liang function to provide as an argument a function computing the value of the covariates X for any subject at any given time t, not just the observation times.
IrregLong 0.2.0
CRAN release: 2020-01-24
Major changes
When using lagged variable, there is an option to include a value for the first lagged observation within each subject.
A function (abacus.plot) for producing an abacus plot has been added.
The Liang model now allows for time-invariant covariates to be included in the visit process model.
Bug fixes
The documentation (examples and vignette) has been updated to use dosing by weight in the measurement frequency model.
tinvarcols can be omitted from addcensoredrows, iiwgee, and iiw.weights if maxfu=NULL.
lagfn and addcensoredrows no longer require subject identifiers to be numeric.