fetch_lotek_positions: Download Position (Fix) Data via Lotek API

In Huh/collar: Utilities for Accessing and Manipulating GPS Data

Download Position (Fix) Data via Lotek API

Description

Retrieves GPS data optionally filtered by date or collar.

Usage

fetch_lotek_positions(device_id = NULL, start_date = NULL, end_date = NULL)

Arguments

device_id	A single device id, or a list or vector of device ids, or NULL for all devices associated with current account.
start_date	Only fixes at or after start_date will be included in the output. Must be in the format YYYY-MM-DD HH:MM:SS. If NULL Jan 1 1970 is used.
end_date	Only fixes at or before end_date are included, analagous to start_date above. If NULL current date/time is used.

Value

A tibble containing position data, or an empty tibble in the same format is no rows are returned.

Notes

Unlike other fetch_lotek... functions in this package, this will not return an error if the API call fails. This behavior is intentional and due to the fact that failures/errors and successful calls that did not return any data are indistinguishable on the client side. If the API response indicates an error (for either reason) an empty tibble is returned with the same columns as a successful download.

See Also

fetch_lotek_alerts for downloading alerts such as mortality events, and fetch_lotek_devices for downloading a list of collars associated with the current account.

Examples

lotek_login("demo", "PASSWORD09")

# all fixes for all collars in 2020
fixes <- fetch_lotek_positions(start_date = "2020-01-01 00:00:00",
                                    end_date = "2021-01-01 00:00:00")

# all fixes for collar 32763
fixes_32763 <- fetch_lotek_positions(device_id = 32763)

# all fixes for collars 32763, 34023, and 42492
fixes_3_cols <- fetch_lotek_positions(device_id = c(32763, 34023, 42492))

# fixes for collar 32763 in 2018
fixes <- fetch_lotek_positions(device_id = 32763,
                               start_date = "2018-01-01 00:00:00",
                               end_date = "2019-01-01 00:00:00")

Huh/collar documentation built on Aug. 5, 2022, 11:02 p.m.