platt_modified {pam} | R Documentation |
Platt Model Modification
Description
This function enhances the Platt (1980) model by adding parameters not originally included in the model, which were introduced by other models. It also renames parameters to a standardized naming convention used across all models.
Usage
platt_modified(model_result)
Arguments
model_result |
A list containing the results of the model, including parameters such as |
Details
A detailed documentation can be found under https://github.com/biotoolbox/pam?tab=readme-ov-file#platt_modified
Value
A modified model result as a list with the following elements:
-
etr_type
: ETR Type based on the model result. -
etr_regression_data
: Regression data with ETR predictions based on the fitted model. -
sdiff
: The difference between observed and predicted ETR values. -
a
: Obtained parametera
, equal toetrmax_without_photoinhibition
. -
b
: Obtained parameterb
, equal toalpha
. -
c
: Obtained parameterc
, equal tobeta
. -
d
: Not available, set toNA_real_
. -
alpha
: The initial slope of the light curve, transferred unchanged asalpha
. -
beta
: The photoinhibition of the light curve, transferred unchanged asbeta
. -
etrmax_with_photoinhibition
: The maximum electron transport rate with photoinhibition, transferred aspm
. -
etrmax_without_photoinhibition
: The maximum electron transport rate without photoinhibition, transferred asps
. -
ik_with_photoinhibition
: PAR where the transition point from light limitation to light saturation is achieved with photoinhibition, transferred asik
. -
ik_without_photoinhibition
: PAR where the transition point from light limitation to light saturation is achieved without photoinhibition, transferred asis
. -
im_with_photoinhibition
: The PAR at which the maximum electron transport rate is achieved with photoinhibition, transferred asim
. -
w
: Not available, set toNA_real_
. -
ib
: Transferred unchanged asib
. -
etrmax_with_without_ratio
: Ratio ofetrmax_with_photoinhibition
toetrmax_without_photoinhibition
, andik_with_photoinhibition
toik_without_photoinhibition
.
Examples
path <- file.path(system.file("extdata", package = "pam"), "20240925.csv")
data <- read_dual_pam_data(path)
result <- platt_generate_regression_ETR_II(data)
modified_result <- platt_modified(result)