This function uses Hampel filter outlier detection to flag outliers in parameter column of the incoming dataframe. The width and thresholdMin parameters as passed on to the findOutliers function.

An additional boolean column named <parameter>_outlierFlag is added to the dataframe. This column will have TRUE whenever an outlier is detected for the chosen parameter.

See findOutliers for further details.

.flagOutliers(df = NULL, parameter = NULL, width = 23, thresholdMin = 8)

Arguments

df

Data frame.

parameter

Data frame parameter to use for outlier detection.

width

Width the rolling window.

thresholdMin

Minimum threshold value used to detect outliers.

Value

A dataframe with an additional column identifying outliers.