edsummary.nl {PUPAK}

Non-Linear External Diffusion Models Summary

Description

Summarized results of parameter and error values collected from external diffusion models, namely: Boyd External Diffusion, Furusawa and Smith, and Matthews and Weber.

Usage

edsummary.nl(t, qt, Ct, qinf, Co, m, V, b, sort.by)

Arguments

t

the numerical value for contact time

qt

the numerical value for the amount adsorbed at time t

Ct

the numerical value for the concentration of the adsorbent at time t

qinf

the numerical value for the amount adsorbed at infinite time

Co

the numerical value for the initial concentration of the adsorbent

m

the numerical value for mass of adsorbent

V

the numerical value for volume of solution

b

the numerical value or the Langmuir isotherm constant

sort.by

the name of the statistical error parameter in which the models are sorted in either increasing or decreasing order. The only accepted arguments are "RMSE" for Relative Mean Square Error, 'MAE' for Mean Absolute Error, 'MSE' for Mean Squared Error, 'RAE' for Relative Absolute Error, 'AIC' for Akaike Information Criterion, 'BIC' for Bayesian Information Criterion, 'R2' for Coefficient of Determination, and 'SE' for Standard Error Estimate. This argument is case-sensitive, and failure to input the correct value will yield a summary of models in alphabetical order.

Value

the summarized error and parameter values from external diffusion models.

Author(s)

Jeff Ryan S. Magalong

Joshua Z. DelaCruz

Jeann M. Bumatay

Chester C. Deocaris

Examples

t  <- c(0,15,30,45,60,75,90,105,120)
qt <- c(0.000,3.718,3.888,4.102,4.274,4.402,4.444,4.488,4.616)
Ct <- c(10.000,8.141,8.056,7.949,7.863,7.799,7.778,7.756,7.692)
edsummary.nl(t,qt,Ct,qinf=4.8,Co=10,m=0.05,V=0.1,b=1.3,"SE")