Separate the multiple types of information in sequenceNumberCentral
and sequenceNumberHospital into multiple columns.
split_sequence_number(x)A data.frame with three columns:
(integer) The number of the tumor in chronological sequence for
the patient.
(logical) If TRUE, then the tumor is required to be
reported by SEER/NPCR standards. If FALSE, it is either
non-malignant or defined as reportable by the registry.
(logical) If TRUE, this is the only known
SEER/NPCR-reportable or the only known non-SEER/NPCR-reportable tumor
for the patient.
(factor) Special flags, such as unknowns or changes in reporting
requirements. Created using split_sentineled.
Vector (usually character) of sequence number codes.
split_sentineled