Graphs from Game Cameras

Python modules for generating animal social networks using game camera data.

Requirements

1. exiftool

2. Python 2.7.5 (should work with Python 2.7.x)

3. Python modules

   a. pandas

   b. pyexif

Installation

These are stand-alone scripts requiring no separate installation.

Modules

get_timestamps.py

Game camera photo EXIF time stamp retrieval.

Argument	Details
-f (--file)	CSV file containing paths to photos and animal IDs
-ot (--output_time)	Path for writing output time stamp data

generate_graphs.py

Graph generation from time stamp and animal ID data.

Argument	Details
-f (--file)	CSV file containing animal IDs and time stamps (may be output of get_timestamps.py)
-w (--window)	Window size for aggregating temporal data
-u (--units)	Units for window size, if not hours. Acceptable entries are T (minutes), H (hours), and D (days)
-og (--output_graph)	Path for writing output graph image (default = None)

Example Usage

Retrieve time stamps from a single camera trap site:

python get_timestamps.py -f site1_data.csv -ot site1_times.csv

Generate network for camera trap site based on hourly co-occurrence intervals:

python generate_graphs.py -f site1_times.csv -w 1 -u H -og site1_graph.png