Vectorized sampling from a non homogeneous Poisson Point Process (NHPPP) from an interval (thinning method) with piecewise constant_majorizers (C++)
Source:R/vdraw_intensity.R
vdraw_intensity.Rd
Vectorized sampling from a non homogeneous Poisson Point Process (NHPPP) from an interval (thinning method) with piecewise constant_majorizers. The majorizers are step functions over equal-length time intevals.
Usage
vdraw_intensity(
lambda = NULL,
lambda_args = NULL,
Lambda_maj_matrix = NULL,
lambda_maj_matrix = NULL,
rate_matrix_t_min = NULL,
rate_matrix_t_max = NULL,
t_min = NULL,
t_max = NULL,
tol = 10^-6,
atmost1 = FALSE,
atleast1 = FALSE,
atmostB = NULL
)
Arguments
- lambda
(function) intensity function, vectorized
- lambda_args
(list) optional arguments to pass to
lambda
- Lambda_maj_matrix
(matrix) integrated intensity rates at the end of each interval
- lambda_maj_matrix
(matrix) intensity rates, one per interval
- rate_matrix_t_min
(scalar | vector | column matrix) is the lower bound of the time interval for each row of (Lambda|lambda)_maj_matrix. The length of this argument is the number of point processes that should be drawn.
- rate_matrix_t_max
(scalar | vector | column matrix) the upper bound of the time interval for each row of (Lambda|lambda)_maj_matrix. The length of this argument is the number of point processes that should be drawn.
- t_min
(scalar | vector | column matrix) is the lower bound of a subinterval of (rate_matrix_t_min, rate_matrix_t_max]. If set, times are sampled from the subinterval. If omitted, it is equivalent to
rate_matrix_t_min
.- t_max
(scalar | vector | column matrix) is the upper bound of a subinterval of (rate_matrix_t_min, rate_matrix_t_max]. If set, times are sampled from the subinterval. If omitted, it is equivalent to
rate_matrix_t_max
.- tol
(scalar, double) tolerance for the number of events
- atmost1
boolean, draw at most 1 event time
- atleast1
boolean, draw at least 1 event time
- atmostB
If not NULL, draw at most B (B>0) event times. NULL means ignore.