CalcTTSubOModel: A Function to calculate the ThermalTime model parameters....

In pedrobello/pbtm: Population-based threshold models

A Function to calculate the ThermalTime model parameters. ————————

Description

This function calculates the temperature base (Tb), the thermal time to 50% of the population (ThetaT50) and the standard deviation (sigma).

Usage

calcTTSubOModel(
  data,
  germ.temp = "GermTemp",
  cum.time = "CumTime",
  cum.frac = "CumFraction",
  max.cum.frac = 1,
  plot = TRUE
)

Arguments

data	Time course and cumulative dataset to be used in the Thermaltime 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 temperature (Germ.temp) are required. Filter the dataframe to only have treatments with temperature equal or under to optimal temperature level.
germ.temp	Column containing germination temperature values.
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.