vecseq: Vectorized Sequences
In OHDSI/bit: A Class for Vectors of 1-Bit Booleans

Description Usage Arguments Details Value Author(s) See Also Examples

vecseq returns concatenated multiple sequences

1	vecseq(x, y=NULL, concat=TRUE, eval=TRUE)

`x`	vector of sequence start points
`y`	vector of sequence end points (if `is.null(y)` then `x` are taken as endpoints, all starting at 1)
`concat`	vector of sequence end points (if `is.null(y)` then `x` are taken as endpoints, all starting at 1)
`eval`	vector of sequence end points (if `is.null(y)` then `x` are taken as endpoints, all starting at 1)

This is a generalization of sequence in that you can choose sequence starts other than 1 and also have options to no concat and/or return a call instead of the evaluated sequence.

if concat==FALSE and eval==FALSE a list with n calls that generate sequences
if concat==FALSE and eval==TRUE a list with n sequences
if concat==TRUE and eval==FALSE a single call generating the concatenated sequences
if concat==TRUE and eval==TRUE an integer vector of concatentated sequences

Angelo Canty, Jens Oehlschlägel

:, seq, sequence

  sequence(c(3,4))
  vecseq(c(3,4))
  vecseq(c(1,11), c(5, 15))
  vecseq(c(1,11), c(5, 15), concat=FALSE, eval=FALSE)
  vecseq(c(1,11), c(5, 15), concat=FALSE, eval=TRUE)
  vecseq(c(1,11), c(5, 15), concat=TRUE, eval=FALSE)
  vecseq(c(1,11), c(5, 15), concat=TRUE, eval=TRUE)