Description Usage Arguments Examples
This function calculates the values of the derivatives of all valid moment conditions for a single subject in a longitudinal study with count (Poisson) outcomes. It allows for unbalanced data, and uses user-defined types of time-dependent covariates to determine validity of moment conditions. The function returns a matrix of derivatives for all valid moment condition for subject i.
1 | validMDPoi_Types(yvec, subjectIndex, Zmat, Xmat, covTypeVec, betaI, T, Tmax)
|
yvec |
The vector of responses, ordered by subject, time within subject. |
subjectIndex |
The location of the first index of subject i responses within yvec. |
Zmat |
The design matrix for time-independent covariates ((N*T) x K0). |
Xmat |
The design matrix for time-dependent covariates ((N*T) x Ktv). |
covTypeVec |
The vector indicating the type of each time-dependent covariate. |
betaI |
The current or initial estimates of the model parameters (1+K0+Ktv x 1). |
T |
The number of time points for subject i. |
Tmax |
The maximum number of times of observation among all subjects. |
N |
The number of subjects. |
1 |
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