type t = graphThe type for graphs.
val title : t -> string optiontitle t is t's title.
val ylabel : t -> string optiontitle t is t's Y label.
val yunit : t -> string optionunit t is t's Y unit.
val id : t -> intid t is t's unit.
val v : ?title:string -> ?ylabel:string -> ?yunit:string -> unit -> tv () is a new graph.
val list : unit -> t listlist () is the list of graphs.
fields t is the list of t's fields. Field names are unique for a given source.
add_field t src f adds the field f, generated by the source src, to the graph t.
remove_field t src f removes the field named f, generated from the source src, out of the graph t.
val enable : t -> unitval disable : t -> unitval is_active : t -> bool