Returns an index of positions. Intended for evaluating a step function at
selected times. The function counts how many elements of a vector, e.g. the
jump times of the step function, are smaller or equal to the elements in a
second vector, e.g. the times where the step function should be evaluated.
Numeric vector: e.g. the unique jump times of a step
function.
eval.times
Numeric vector: e.g. the times where the step function
should be evaluated
comp
If "greater" count the number of jump times that are greater
(greater or equal when strict==FALSE) than the eval times
strict
If TRUE make the comparison of jump times and eval times
strict
Details
If all jump.times are greater than a particular eval.time the
sindex returns 0. This must be considered when sindex is used for
subsetting, see the Examples below.
Value
Index of the same length as eval.times containing the numbers
of the jump.times that are smaller than or equal to
eval.times.