LightResponseCurveFitter_optimLRCBounds: LightResponseCurveFitter optimLRCBounds

In REddyProc: Post Processing of (Half-)Hourly Eddy-Covariance Measurements

LightResponseCurveFitter optimLRCBounds

Description

Optimize parameters with refitting with some fixed parameters if outside bounds

Usage

LightResponseCurveFitter_optimLRCBounds(theta0, 
    parameterPrior, ..., dsDay, lastGoodParameters, 
    ctrl)

Arguments

theta0	initial parameter estimate
parameterPrior	prior estimate of model parameters
...	further parameters to .optimLRC,
dsDay	argument to .optimLRC, here checked for occurrence of high VPD
lastGoodParameters	parameters vector of last successful fit
ctrl	list of further controls, such as isNeglectVPDEffect = TRUE

Details

If parameters alpha or k are outside bounds (Table A1 in Lasslop 2010), refit with some parameters fixed to values from fit of previous window.

No parameters are reported if alpha<0 or RRef < 0 or beta0 < 0 or beta0 > 250

Not parameters are reported if the data did not contain records that are near light saturation. This is checked by comparing the prediction at highest PAR with the beta parameter

Value

list result of optimization as of LightResponseCurveFitter_optimLRCOnAdjustedPrior with entries

theta	numeric parameter vector that includes the fixed components
iOpt	integer vector of indices of the vector that have been optimized
convergence	scalar integer indicating bad conditions on fitting (see LightResponseCurveFitter_fitLRC)

Author(s)

TW, MM Department for Biogeochemical Integration at MPI-BGC, Jena, Germany <[e-mail]> [cph], Thomas Wutzler <[e-mail]> [aut, cre], Markus Reichstein <[e-mail]> [aut], Antje Maria Moffat <[e-mail]> [aut, trl], Olaf Menzer <[e-mail]> [ctb], Mirco Migliavacca <[e-mail]> [aut], Kerstin Sickel <[e-mail]> [ctb, trl], Ladislav <U+0160>igut <[e-mail]> [ctb]

See Also

LightResponseCurveFitter_fitLRC

REddyProc documentation built on May 29, 2024, 12:10 p.m.