Partial derivatives of probability to be cure by theta from non-mixture model with distribution "tneh".
dptdtheta_multneh(
z_alpha = z_alpha,
z_tau = z_tau,
x = x,
object,
cumLexctopred = NULL,
Dpi = NULL,
Dsn = NULL
)
Covariates matrix acting on parameter alpha of the density of time-to-null excess hazard model
Covariates matrix acting on time-to-null parameter.
time at which the estimates are predicted
ouput from model implemented in curesurv
pre prediction obtained from cumLexc_mul_topred, if NULL will be calculated
partial derivative of pi according to theta, if NULL will be calculated
partial derivative of net survival according to theta , if NULL will be calculated