interpret_qc: Convert the decimal QC flag into a human-interpretable...

In fluxfixer: Advanced Framework for Sap Flow Data Post-Process

Convert the decimal QC flag into a human-interpretable 10-digit binary

Description

'interpret_qc()' converts the input decimal QC (quality control) flag time series into a data frame whose columns indicate the applied process to each data point. The values "0" and "1" represent that the process specified in their column name was applied and not applied to the data point, respectively.

Usage

interpret_qc(vctr_qc)

Arguments

vctr_qc

A vector of the decimal QC flag output from 'run_fluxfixer()'.

Value

A data frame with columns below:

* The first column, 'initial_na', indicates whether the data point was originally missing.

* The second column, 'manual_removal', indicates whether the data point was removed manually as specified in the 'vctr_time_err' argument in the 'run_fluxfixer()'.

* The third column, 'absolute_limits', indicates whether the data point was removed as an outlier by absolute limits.

* The fourth column, 'drift_correction', indicates whether the data point was modified by the short-term drift correction.

* The fifth column, 'noise_filtering', indicates whether the data point was modified by the high-frequency noise filtering.

* The sixth column, 'z_score_outlier', indicates whether the data point was removed by the Z-score outlier detection.

* The seventh column, 'rf_outlier', indicates whether the data point was removed by the random forest outlier detection.

* The eighth column, 'gap_filling', indicates whether the data point was gap-filled by the random forest model prediction.

* The ninth column, 'detrending', indicates whether the data point was modified in the detrending.

* The tenth column, 'damping_correction', indicates whether the data point was modified by the signal damping correction.

Author(s)

Yoshiaki Hata

Examples

## Make a QC flag vector
qc <- c(0, 1, 2, 1023)

## Obtain a human-interpretable QC data frame
result <- interpret_qc(vctr_qc = qc)

fluxfixer documentation built on April 11, 2026, 5:06 p.m.