Format time series data frame into a matrix

Format time series data frame into a matrix

Usage

ts2mat(
  ts,
  twl_offset = 0,
  value = "value",
  twl_time_tolerance = formals(twilight_create)$twl_time_tolerance
)

Arguments

ts

data.frame of a tag, containing at least date and value.

twl_offset

Shift of the middle of the night compared to 00:00 UTC (in hours). If not provided, it uses the middle of all nights.

value

column name to extract

twl_time_tolerance

Maximum allowed time difference in seconds between observations and the regular grid. Observations beyond this threshold will be set to NA. Default is 180 seconds (3 minutes).

Value

A data.frame with columns date and value.