walsby_generate_regression_ETR_II {pam}R Documentation

Walsby Regression for ETR II

Description

Fits a modified Walsby (1997) regression model without the respiration term, using Romoth (2019) naming conventions. Calculates ETR_{max} without accounting for photoinhibition.

Usage

walsby_generate_regression_ETR_II(
  data,
  etr_max_start_value = walsby_default_start_value_etr_max,
  alpha_start_value = walsby_default_start_value_alpha,
  beta_start_value = walsby_default_start_value_beta
)

Arguments

data

A data.table from read_dual_pam_data.

etr_max_start_value

Numeric. Initial value for ETR_{max}. Default: etr_max_start_value_walsby_default.

alpha_start_value

Numeric. Initial value for \alpha. Default: alpha_start_value_walsby_default.

beta_start_value

Numeric. Initial value for \beta. Default: beta_start_value_walsby_default.

Details

A detailed documentation can be found under https://github.com/biotoolbox/pam?tab=readme-ov-file#walsby_generate_regression_etr_i-and-walsby_generate_regression_etr_ii.

Value

A list containing:

References

Walsby, A. E. (1997). Numerical integration of phytoplankton photosynthesis through time and depth in a water column. New Phytologist, 136(2), 189-209. Available at: doi:10.1046/j.1469-8137.1997.00736.x

Romoth, K., Nowak, P., Kempke, D., Dietrich, A., Porsche, C., & Schubert, H. (2019). Acclimation limits of Fucus evanescens along the salinity gradient of the southwestern Baltic Sea. Botanica Marina, 62(1), 1-12. Available at: doi:10.1515/bot-2018-0098

Examples

path <- file.path(system.file("extdata", package = "pam"), "20240925.csv")
data <- read_dual_pam_data(path)

result <- walsby_generate_regression_ETR_II(data)


[Package pam version 1.0.2 Index]