initrichards: Function to generate initial values for parameter estimation
In grofit: The package was developed to fit fit many growth curves obtained under different conditions.
Description
Usage
Arguments
Value
See Also
Description
The function receives time points, growth data, values for A, μ and λ and returns a list object which entrys are used as initial values in the nonlinear fit procedure nls. In this type of model initial values for shape exponent ν.
Usage
1
initrichards(time, y, A, mu, lambda)
Arguments
time
Time points.
y
Growth data.
A
Maximum of the curve. If a vector is provided only the first entry is used.
mu
Maximum slope. If a vector is provided only the first entry is used.
lambda
Lag-phase. If a vector is provided only the first entry is used.
Value
A
Maximum of the curve.
mu
Maximum slope.
lambda
Lag-phase.
addpar
Shape exponent ν.
See Also
grofit documentation built on May 30, 2017, 4:08 a.m.
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Description Usage Arguments Value See Also
Description
The function receives time points, growth data, values for A, μ and λ and returns a list object which entrys are used as initial values in the nonlinear fit procedure nls. In this type of model initial values for shape exponent ν.
Usage
1 | initrichards(time, y, A, mu, lambda)
|
Arguments
time |
Time points. |
y |
Growth data. |
A |
Maximum of the curve. If a vector is provided only the first entry is used. |
mu |
Maximum slope. If a vector is provided only the first entry is used. |
lambda |
Lag-phase. If a vector is provided only the first entry is used. |
Value
A |
Maximum of the curve. |
mu |
Maximum slope. |
lambda |
Lag-phase. |
addpar |
Shape exponent ν. |
See Also
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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