Extraction of a subset of locations or individuals from a movement track.
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## S4 method for signature 'MoveStack,ANY,ANY' x[i] ## S4 method for signature 'MoveStack,character,missing' x[[i]]
numeric, character or logical vector for individuals in a stack or a set of locations
The double square bracket method is used for sub setting a moveStack to a single move object according to the individual name or return a stack of multiple individuals.
same object class as the input containing the selected locations or individuals
Bart Kranstauber & Anne Scharf
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## subseting a Move, MoveBurst, DBBMM, dBMvariance, dBMvarianceBurst, ## dBMvarianceStack or dBGBvariance object by locations data(leroy) leroy[1:20,] # subset to selected range of coordinates of a move objects leroy[c(1,10,20),] # subset to selected coordinates of a move objects leroy[c(TRUE,FALSE),] # subset to every second location leroy[c(TRUE,FALSE,FALSE),] # subset to every third location ## subseting a moveStack, DBBMMStack or DBBMMBurstStack object, ## by locations data(fishers) # subset to selected range of coordinates of a moveStack objects. If the first individual contains # more than, in this case 300, locations, only locations of the fist individual will be returned fishers[1:300,] fishers # returns first location of first individual ## or individuals fishers[['Ricky.T']] # returns move object of named individual fishers[[c('Leroy','Ricky.T')]] # returns subseted moveStack only with the named individual fishers[] # returns move object of 2nd individual fishers[[c(1,2)]]# returns subseted moveStack only with the selected individual fishers[[c(TRUE,FALSE)]] # returnes move or moveStack object with those individuals that are 'TRUE'
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