Last data update: 2014.03.03

R: Return the derivative of the linear function
dydt.linearR Documentation

Return the derivative of the linear function

Description

Return the derivative of the linear function
dydt.linear(t, size, parms)

Usage

dydt.linear(t, size, parms)

Arguments

t

The time in any unit

size

The current size

parms

A vector with alpha being c(alpha=x1, K=x2). Only alpha is used.

Details

dydt.Linear returns the derivative of the linear function.

Value

A list with the derivative

Author(s)

Marc Girondot

Examples

## Not run: 
library(embryogrowth)
data(nest)
formated <- FormatNests(nest)
# The initial parameters value can be:
# "T12H", "DHA",  "DHH", "Rho25"
# Or
# "T12L", "DT", "DHA",  "DHH", "DHL", "Rho25"
x <- structure(c(306.174998729436, 333.708348843241, 299.856306141849,  
	149.046870203155), .Names = c("DHA", "DHH", "T12H", "Rho25"))
# K or rK are not used for dydt.linear or dydt.exponential
resultNest_4p_linear <- searchR(parameters=x, fixed.parameters=NULL,  
	temperatures=formated, derivate=dydt.linear, M0=1.7,  
	test=c(Mean=39.33, SD=1.92))

## End(Not run)

Results