platt_generate_regression_ETR_I {pam} | R Documentation |
Platt Regression for ETR I
Description
Fits the Platt (1980) regression model using original naming conventions.
Usage
platt_generate_regression_ETR_I(
data,
alpha_start_value = platt_default_start_value_alpha,
beta_start_value = platt_default_start_value_beta,
ps_start_value = platt_default_start_value_ps
)
Arguments
data |
A |
alpha_start_value |
Numeric. Initial value for |
beta_start_value |
Numeric. Initial value for |
ps_start_value |
Numeric. Initial value for |
Details
A detailed documentation can be found under https://github.com/biotoolbox/pam?tab=readme-ov-file#platt_generate_regression_etr_i-and-platt_generate_regression_etr_ii .
Value
A list containing:
-
etr_regression_data
: Predicted ETR values. -
sdiff
: Deviation between actual and predicted ETR. -
ps
: Maximum electron transport rate without photoinhibition (P_s
). -
alpha
: Initial slope of the light curve (\alpha
). -
beta
: Photoinhibition (\beta
). -
pm
: Maximum electron transport rate with photoinhibition (P_m
). -
ik
: Transition PAR with photoinhibition (I_k
). -
is
: Transition PAR without photoinhibition (I_s
). -
im
: PAR at maximum ETR with photoinhibition (I_m
). -
ib
: (I_b
)
References
Platt, T., Gallegos, C. L., & Harrison, W. G. (1980). Photoinhibition of photosynthesis in natural assemblages of marine phytoplankton. Journal of Marine Research, 38(4). Retrieved from https://elischolar.library.yale.edu/journal_of_marine_research/1525/.
Examples
path <- file.path(system.file("extdata", package = "pam"), "20240925.csv")
data <- read_dual_pam_data(path)
result <- platt_generate_regression_ETR_I(data)