fluxfixer1.0.0 package

Advanced Framework for Sap Flow Data Post-Process

calc_dtmax_dr

Calculate dTmax by the double regression method

calc_dtmax_ed

Calculate dTmax by the environmental dependent method

calc_dtmax_mw_dr

Calculate dTmax by the moving window and double regression methods

calc_dtmax_mw

Calculate dTmax by the moving window method

calc_dtmax_pd_ed

Calculate dTmax by the daily predawn and environmental dependent metho...

calc_dtmax_pd

Calculate dTmax by the daily predawn method

calc_dtmax_sp

Calculate dTmax by the successive predawn method

calc_dtmax

Calculate dTmax by various methods

calc_fd

Calculate sap flux density time series

calc_ref_stats

Define reference values of average and standard deviation

calc_sw_in_toa

Calculate global solar radiation time series at TOA

check_absolute_limits

Remove outliers by absolute limits

check_short_attenuation

Detect periods when short-term signal attenuation occurs

fill_gaps

Fill missing values with a random forest model

filter_highfreq_noise

Filter high frequency noise by Gaussian filter

fluxfixer-package

fluxfixer: Advanced Framework for Sap Flow Data Post-Process

get_interval

Obtain time interval of input timestamp vector

modify_short_drift

Modify short-term drifts

n_valid

Obtain the number of data points without missing values

pipe

Pipe operator

remove_manually

Remove error values manually

remove_rf_outlier

Remove outliers detected by a random forest model

remove_zscore_outlier

Remove outliers by Z-score time series

retrieve_ts

Retrieve time series in its original units

rf_fit

Tune hyperparameters used in a random forest model

rf_pred

Predict targeted time series by a random forest model

run_fluxfixer

Run all quality control processes automatically

Provides a flexible framework for post-processing thermal dissipation sap flow data using statistical methods and machine learning. This framework includes anomaly correction, outlier removal, gap-filling, trend removal, signal damping correction, and sap flux density calculation. The functions in this package can also apply to other time series with various artifacts.

  • Maintainer: Yoshiaki Hata
  • License: MIT + file LICENSE
  • Last published: 2026-02-02