fitegro: Fit exponential growth data

In TJMurphy/nlfitr: Fitting models to nonlinear data

Description

Fit the exponential growth model 'y = ylo*exp(k*x)' to data.

Usage

fitegro(x, y, data, k, ylo, weigh)

Arguments

x	A vector of linear scale values, usually time.
y	A vector of measured values in response to x.
data	A dataframe with the x and y variables.
k	A starting estimate for the rate constant, which has units of reciprocal x.
ylo	An estimate for the lowest value of y, or starting value.
weigh	Chooses regression weighting by 1/y^2. Default = FALSE.

Value

nls

Examples

#bacterial growth

fitegro(x=min, y=A600, data=culture, k= 1, ylo=1, weigh=FALSE)

TJMurphy/nlfitr documentation built on March 18, 2021, 12:33 p.m.