sigmoid_weight {mizer} | R Documentation |
Weight based sigmoidal selectivity function
Description
A sigmoidal selectivity function with 50% selectivity at
weight sigmoidal_weight
=w_{\text{sigmoid}}
and width sigmoidal_sigma
=\sigma
.
S(w) = \left(1 + \left(\frac{w}{w_{\text{sigmoid}}}\right)^{-\sigma}\right)^{-1}
Usage
sigmoid_weight(w, sigmoidal_weight, sigmoidal_sigma, ...)
Arguments
w |
Vector of sizes. |
sigmoidal_weight |
The weight at which the knife-edge operates. |
sigmoidal_sigma |
The width of the selection function. |
... |
Unused |
Value
Vector of selectivities at the given sizes.
See Also
gear_params()
for setting the selectivity parameters.
Other selectivity functions:
double_sigmoid_length()
,
knife_edge()
,
sigmoid_length()
[Package mizer version 2.5.3 Index]