dt_shift: Check for datetime shifts (Temperature only)

In DEQrmichie/odeqcdr: ODEQ Continuous Data Review

Check for datetime shifts (Temperature only)

Description

A datetine shift is evaluated by checking that the daily maximum water temperature occurs between 13:00 and 19:00. If the daily maximum falls outside this hour range the function flags all temperature results on that day as an anomaly where dt_shift=TRUE. A datetime shift may indicate an issue with the time not being adjusted to the correct time zone (i.e. still in UTC/GMT), a copy/paste/transcription error, or invalid results. results dataframe must have a column called 'datetime' formatted as POSIXct.

Usage

dt_shift(results, return_df = FALSE)

Arguments

results	Data frame of the results data generated using contin_import.
return_df	TRUE means the results data frame will be returned with the dt_shift column. FALSE only returns the dt_shift vector. Default is FALSE.

Value

data frame.

DEQrmichie/odeqcdr documentation built on Feb. 15, 2025, 10:01 a.m.