Developed on Windows 10
RStudio
R version 3.6 or newer
RxODE package
rtools40
add the rtools40 folder to the PATH environmental variable

Model simulation is done as follows:

• make sure that all files are in de same folder
• in the 01_ModelSimulation.R file:
  • modify the working directory to that folder
  • adapt the PLANTNo parameter under Settings if desired
• Run the entire 01_ModelSimulation.R script

You will have created an RDS file starting with "Simulation_Exp2_" which can be read in R by the readRDS() function

RDS files

• Input files Transpiration:
  • Time - h (0-1 is stabilisation, 1-6 is actual data)
  • Transp - g m-2 h-1
• Input file Soil water potential (constant in this case)
  • Time - h
  • PsiSoil - MPa
• Calib files Leaf elongation:
  • Time - h (0-1 is stabilisation, 1-6 is actual data)
  • LER - m h-1
  • LERnorm (normalised versus the mean of the datafile)

txt file

GrassMod_Exp2.txt: txt file of the model used in Exp2

R files

• Thetas_Exp2.R: generation of the 'thetas_Exp2' named vector based on parameter settings
• Inits_Exp2.R: generation of the 'inits_Exp2' named vector based on initial values of state variables
• 01_ModelSimulation.R: script for model simulation with reference parameters including:
  • Loading input data
  • Loading Calibration data
  • Simulation settings
  • Parameter values + automatic calculation of derived parameters and initial conditions
  • Model compilation (if necessary)
  • Simulation runs for 4 different Transpiration inputs (similar treatment) + mean Transpiration