f: Piecewise smooth function used in area penalty
In retistruct: Retinal Reconstruction Program
f R Documentation
Piecewise smooth function used in area penalty
Description
Piecewise, smooth function that increases linearly with negative arguments.
f(x) = \left\{
\begin{array}{ll}
-(x - x_0/2) & x < 0 \\
\frac{1}{2x_0}(x - x_0)^2 & 0 < x <x_0 \\
0 & x \ge x_0
\end{array} \right.
Usage
f(x, x0)
Arguments
x
Main argument
x0
The cut-off parameter. Above this value the function is zero.
Value
The value of the function.
Author(s)
David Sterratt
retistruct documentation built on April 3, 2025, 5:58 p.m.
R Package Documentation
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
| f | R Documentation |
Piecewise smooth function used in area penalty
Description
Piecewise, smooth function that increases linearly with negative arguments.
f(x) = \left\{
\begin{array}{ll}
-(x - x_0/2) & x < 0 \\
\frac{1}{2x_0}(x - x_0)^2 & 0 < x <x_0 \\
0 & x \ge x_0
\end{array} \right.
Usage
f(x, x0)
Arguments
x |
Main argument |
x0 |
The cut-off parameter. Above this value the function is zero. |
Value
The value of the function.
Author(s)
David Sterratt
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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