timesToCircular: Convert a data frame with timestamps into a list of circular...

In actel: Acoustic Telemetry Data Analysis

Convert a data frame with timestamps into a list of circular objects

Description

Convert a data frame with timestamps into a list of circular objects

Usage

timesToCircular(x, by.group = FALSE)

Arguments

x	A data frame where the first column is an identifier, the second column is a grouping structure, and columns three and onwards are timestamps at different locations. Can be generated automatically by getTimes.
by.group	Logical: Should the times at each location be divided by the group column (second column of x)?

Value

A list of circular objects for each data column and, optionally, for each group.

Examples

# create dummy input data frame.
# Note: the names of the columns are irrelevant.
x <- data.frame(ID = c(1:5),
 Group = c("A", "A", "B", "B", "B"),
 A1 = as.POSIXct(
   c("2019-01-03 11:21:12",
     "2019-01-04 12:22:21",
     "2019-01-05 13:31:34",
     "2019-01-06 14:32:43",
     "2019-01-07 15:23:52")),
 A2 = as.POSIXct(
   c("2019-01-08 16:51:55",
     "2019-01-09 17:42:42",
     "2019-01-10 18:33:33",
     "2019-01-11 19:24:32",
     "2019-01-12 20:15:22")),
 stringsAsFactors = TRUE)

# run timesToCircular
timesToCircular(x)

# optionally, split results by group:
timesToCircular(x, by.group = TRUE)

actel documentation built on Oct. 19, 2023, 9:08 a.m.