CalcHTTModel: A Function to calculate the Hydrothermal time model...

In pedrobello/pbtm: Population-based threshold models

A Function to calculate the Hydrothermal time model parameters.

Description

This function calculates the hydrohermal time constant (HT), the temperature base (tb), the median water potential base (Psib50) and the standard deviation (sigma).

Usage

calcHTTModel(
  data,
  germ.wp = "GermWP",
  germ.temp = "GermTemp",
  cum.time = "CumTime",
  cum.frac = "CumFraction",
  max.cum.frac = 1,
  base.temp = NULL,
  plot = TRUE
)

Arguments

data	time course and cumulative dataset to be used in the hydrothermal time model. The original dataframe template should be used or column names should be modified similarly to the template. A column with time (CumTime) + a column with cumulative fractions (CumFraction), the experimental water potential (Germ.wp) and the temperature (Germ.temp) are required.
germ.wp	Column containing germination water potential.
germ.temp	Column containing germination temperature.
cum.time	Column containing cumulative elapsed time.
cum.frac	Column containin cumulative fraction germinated.
max.cum.frac	Sets the ceiling cumulative fraction for the model when treatment at optimal condition displays a lower maximum cumulative fraction. Use it on your own discretion.
base.temp	is the temperature base that can be provided and have a fixed value or left in blank to be calculated with other hydrothermal parameters.
plot	Should the model results be plotted?

Examples

"foo"

pedrobello/pbtm documentation built on May 17, 2022, 3:37 a.m.