lxy.id.new: Change the id value(s) in a LoCoH-xy object
In tlocoh: Constructs homeranges and explores time use patterns from location data

Description Usage Arguments Details Value

Changes the id values in a LoCoH-xy object, with option to save the 'old' id values as an ancillary variable

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lxy.id.new(lxy, id.new, save.old.id = NULL, dup.dt = c("check",
  "offset", "ignore")[1], dup.dt.offset = 5, dt.int.round.to = 0.1,
  tau.diff.max = 0.02, status = TRUE)

`lxy`	A LoCoH-xy object
`id.new`	New value(s) for the id (i.e., name of the individual(s)). Can be either a single character object 'broken_tooth', or factor or character vector of the same length as the number of points
`save.old.id`	Whether to save the old ids as an ancillary variable. Can be T/F, or the name of a column in the ancillary variables data frame, see Details
`dup.dt`	What to do if duplicate dt values are encountered in the merged object, see details
`dup.dt.offset`	The maximum offset in seconds to offset duplicate dt values, used only if `dup.dt = "offset"`
`dt.int.round.to`	The proportion of the median sampling frequency that time intervals will be rounded to when computing the frequency table of sampling intervals (no change is made to the time stamps)
`tau.diff.max`	The maximum deviation from tau (the median delta.t of the entire dataset), expressed as a proportion of tau, that time difference between two points must fall for the distance between those two points to be included in the calculation of the median step length
`status`	Show status messages. T/F

This function can be used to change the id value for each point. Note that the id value is the name of the individual animal or device, as opposed to ptid which is a unique numeric integer for each point.

tau.diff.max exists to eliminate the inclusion of temporal outliers in the computation of the median step length. The time difference betwen points must be withint tau.diff.max of tau for that pair of points to be included in step length calculation.

One can also use this function to change the id (name of the individual), rebuild the rw.params or table of sampling frequencies

A LoCoH-xy object containing the original xys, dt, ptid and ancillary values for each point. Other items and attributes (including the comment) will be recreated or set to NULL

tlocoh documentation built on May 2, 2019, 5:27 p.m.