CalcHTModel: A Function to calculate the Hydrotime model parameters.

In pedrobello/pbtm: Population-based threshold models

A Function to calculate the Hydrotime model parameters.

Description

This function calculates the hydrotime constant (HT), the median water potential base (Psib50) and the standard deviation (sigma).

Usage

calcHTModel(
  data,
  germ.wp = "GermWP",
  cum.time = "CumTime",
  cum.frac = "CumFraction",
  max.cum.frac = 1,
  plot = TRUE
)

Arguments

data	time course and cumulative dataset to be used in the hydrotime model. The original dataframe template should be used or column names should be modified similarly to the template. A column with time in hours CumTime) + a column with cumulative fractions (CumFraction) and the experiment water potential (Germ.wp) are required. Filter the dataframe to only have treatments with water potential at the same temperature level.
germ.wp	Column containing germination water potential.
cum.time	Column containing cumulative elapsed time.
cum.frac	Column containing 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.
plot	Should the model results be plotted?

Examples

"foo"

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