Description Usage Arguments Examples
Fit a threshold regression cure-rate model for interval-censored data and calculate the prediction of the initial health status value, the drift value of the health process and cure rate. Whether the accommodated cure rate exists by goodness-of-fit test compared with the 'thregI'.
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formula |
a formula object, which has the similar format to that in the thregI(). There are two | operators, on the left-hand side | operator is used for the linear regression function of ln{y_0} and specifing explaination variables of μ. On the right of right-hand side | operator is used for specifing explaination variables of logit (p). A constant ln{y_0}, μ or logit (p) is allowed. |
data |
a data frame has the same format as that in the thregI(). |
1 2 3 4 5 6 7 8 9 10 11 12 | #load the data "hdsd"
data("hdsd", package="thregI")
#transform the Noadyn variable into factor variable f.noadyn
hdsd$f.noadyn=factor(hdsd$Noadyn)
#fit the threshold regression cure-rate model
#the covariates are TR360, Noadyn, Sex and Age
fit<-thregIcure(Surv(left, right, type='interval2')~f.noadyn+TR360|f.noadyn+TR360|f.noadyn+TR360+
Sex+Age, data=hdsd)
fit
#note that p-value of the goodness of fit test return by thregIcure function
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