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Extract log data from BAR-LT log files

Source: R/clean_logs.R
clean_logs.Rd

Process BAR-LT log files into a data frame reflecting metadata, schedule information, and events. Events are time-stamped logs of either GPS fixes (lat and lon) or recordings (rec_file, rec_size, rec_end).

Usage

clean_logs(log_files, return = "all", progress = TRUE)

Arguments

log_files

Character vector of log files to process.

return

Character. What kind of data to return, GPS fixes ("gps"), recording events ("recordings") or "all" (default).

progress

Logical. Whether to use purrr::map() progress bars (default TRUE).

Value

Data frame containing

  • file_names and paths of the log files

  • events and their date_times

  • lat and lon for "gps" events

  • rec_file, rec_size and rec_end for "recording" events (recording start is the date_time of the event)

  • schedule information such as schedule_date, schedule_name, schedule_lat, schedule_lon, schedule_sr (sunrise), and schedule_ss (sunset)

  • metadata information such as meta_serial and meta_firmware

Details

Note that log files can have glitches. If there is no start time for a recording (generally when there is a problem and no recording is made), the date_time value for that recording will be the same as the rec_end time.

Because the BAR-LT units adjust their time according to the GPS locations, all times are in "local" to that area.

Examples

if (FALSE) { # dir.exists("my_project_folder")
# Replace "my_project_folder" with your directory containing your recordings and logfiles
log_files <- fs::dir_ls("my_project_folder", recurse = TRUE, glob = "*logfile*")
log_files
logs <- clean_logs(log_files)

log_files <- "../ARUtools - Extra/aru_log_files/P028/1A_BARLT10962/logfile_00010962_SD1.txt"

clean_logs(log_files)
clean_logs(log_files, return = "gps")
clean_logs(log_files, return = "recordings")

log_files <- fs::dir_ls("../ARUtools - Extra/aru_log_files/", recurse = TRUE, glob = "*logfile*")

l <- clean_logs(log_files)
}