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ICSKAT (version 0.3.0)

Interval-Censored Sequence Kernel Association Test

Description

Implements the Interval-Censored Sequence Kernel Association (ICSKAT) test for testing the association between interval-censored time-to-event outcomes and groups of single nucleotide polymorphisms (SNPs). Interval-censored time-to-event data occur when the event time is not known exactly but can be deduced to fall within a given interval. For example, some medical conditions like bone mineral density deficiency are generally only diagnosed at clinical visits. If a patient goes for clinical checkups yearly and is diagnosed at, say, age 30, then the onset of the deficiency is only known to fall between the date of their age 29 checkup and the date of the age 30 checkup. Interval-censored data include right- and left-censored data as special cases. This package also implements the interval-censored Burden test and the ICSKATO test, which is the optimal combination of the ICSKAT and Burden tests. Please see the vignette for a quickstart guide. The paper describing these methods is " Inference for Set-Based Effects in Genetic Association Studies with Interval-Censored Outcomes" by Sun R, Zhu L, Li Y, Yasui Y, & Robison L (Biometrics 2023, ).

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Version

Install

install.packages('ICSKAT')

Monthly Downloads

222

Version

0.3.0

License

GPL-3

Maintainer

Ryan Sun

Last Published

December 3rd, 2025

Functions in ICSKAT (0.3.0)

createInt

Called by gen_IC_data() to turn the actual outcome times and observation times into interval-censored outcomes for each subject. Apply this with mapply over a data.frame of visit times, pass in the exact times.
fIntegrate

fIntegrate.R
construct_interval_probs

construct_interval_probs.R
fIntegrateLiu

fIntegrateLiu.R
coxphFn

coxphFn
make_IC_dmat

make_IC_dmat.R
mixture_kurtosis

mixture_kurtosis.R
matchVisit

match_visit.R
singleSNPalt

singleSNPalt.R
ICsingleSNP

ICsingleSNP.R
ICSKAT_fit_null_PO

ICSKAT_fit_null_PO.R
ICskat

ICSKAT.R
ICSKATwrapper

ICSKATwrapper.R
ICSKAT_fit_null

ICSKAT_fit_null.R
ACAT

Aggregated Cauchy Association Test
QrhoIC

QrhoIC.R
ICSKATO

ICSKATO.R
ICskatPO

ICSKATPO.R
ICSKATO_bootstrap

ICSKATO_bootstrap.R
chiSqMatchFast

chiSqMatchFast.R
calcScoreStats

calcScoreStats.R
gen_IC_data

gen_IC_data.R
survregFn

survregFn