EventData of Pacific ocean perch (POP) tow information (1966-89).
data(surveyData)Data frame consisting of 9 columns: PID = primary polygon ID,
POS = position of each vertex within a given polygon, X
= longitude coordinate, Y = latitude coordinate, trip
= trip ID, tow = tow number in trip, catch = catch of
POP (kg), effort = tow effort (minutes), depth = fishing
depth (m), and year = year of survey trip. Attributes:
projection = "LL", zone = 9.
Schnute, J.T., Haigh, R., Krishka, B.A. and Starr, P. (2001) Pacific ocean perch assessment for the west coast of Canada in 2001. Canadian Science Advisory Secretariat, Research Document 2001/138, 90 pp.
addPoints,
combineEvents,
EventData,
findPolys,
makeGrid,
plotPoints.