Remove line(s) and/or block(s) in a libbi model

Removes one or more lines in a libbi model.

Usage

# S3 method for bi_model
remove_lines(
  x,
  what,
  only,
  type = c("all", "assignment", "sample"),
  preserve_shell = FALSE,
  ...
)

x: a bi_model object
what: either a vector of line number(s) to remove, or a vector of blocks to remove (e.g., "parameter")
only: only remove lines assigning given names (as a vector of character strings)
type: which types of lines to remove, either "all", "sample" (i.e., lines with a "~") or "assignment" (lines with a "<-" or "=") (default: "all")
preserve_shell: if TRUE (default: FALSE), preserve the definition of a block even if all lines are removed; this is useful to preserve options passed to a transition or ode block
...: ignored

the updated bi_model object

model_file_name <- system.file(package = "rbi", "PZ.bi")
PZ <- bi_model(filename = model_file_name)
PZ <- remove_lines(PZ, 2)