A shortcut function for constructing a telemetry capthist object from a file of
telemetry fixes. Telemetry data are generally similar in format to polygon data
(see also addTelemetry).
read.telemetry(file = NULL, data = NULL, covnames = NULL, verify = TRUE, ...)character name of text file
data.frame containing coordinate data (alternative to file)
character vector of names for individual covariates
logical for whether to check input
other arguments passed to countfields, read.table etc.
An secr capthist object including attribute `telemetryxy' with the x-y coordinates, and a `traps' object with detector type = `telemetry'
Input data may be in a text file (argument file) or a dataframe
(argument data). Data should be in the XY format for function `read.capthist`
i.e. the first 5 columns should be Session, ID, Occasion, X, Y. Further columns are
treated as individual covariates.
No `traps' input is required. A traps object is generated automatically.
# NOT RUN {
# }
# NOT RUN {
setwd('D:/bears/alberta')
## peek at raw data
head(readLines('gps2008.txt'))
gps2008CH <- read.telemetry("gps2008.txt")
plot( gps2008CH, gridsp = 10000)
head(gps2008CH)
secr.fit(gps2008CH, start = log(4000), detectfn = 'HHN',
details = list(telemetryscale = 1e12))
# }
# NOT RUN {
# }
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