deterrence_function: Calculates the deterrence function
In CRC1266-A2/moin: Modelling Interactions
Description
Usage
Arguments
Details
Value
Author(s)
References
Description
Calculates the deterrence function used for the different gravity based models
Usage
1
2
deterrence_function(cij, beta, type = "exponential", alpha = 4,
gamma = 1)
Arguments
cij
a matrix containing the cost matrix
beta
the distance decay factor
type
the family of deterrence function to use
alpha
shape parameter 1 for ariadne type deterrence function
gamma
shape parameter 2 for ariadne type deterrence function
Details
Power is generally used for simple gravity models, exponential and ariadne can be used for the Rihll-Wilson model.
alpha and gamma are only relevant for the ariadne type model and default to the values alpha=4 and gamma=1 like in Evans&Rivers 2017.
Value
a matrix containing the deterrence function
Author(s)
Daniel Knitter knitter@geographie.uni-kiel.de
Martin Hinz martin.hinz@iaw.unibe.ch
Benedikt Grammer benedikt.grammer@univie.ac.at
Kai Radloff kai.radloff@hu-berlin.de
Loren V. Cowin Lcowin@gshdl.uni-kiel.de
Clara Filet clara.filet@gmail.com
References
Evans Tim S., Rivers Ray J., Was Thebes Necessary? Contingency in Spatial Modeling. Frontiers in Digital Humanities 4, 2017, https://doi.org/10.3389/fdigh.2017.00008
CRC1266-A2/moin documentation built on May 7, 2019, 8:56 p.m.
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Description Usage Arguments Details Value Author(s) References
Description
Calculates the deterrence function used for the different gravity based models
Usage
1 2 | deterrence_function(cij, beta, type = "exponential", alpha = 4,
gamma = 1)
|
Arguments
cij |
a matrix containing the cost matrix |
beta |
the distance decay factor |
type |
the family of deterrence function to use |
alpha |
shape parameter 1 for ariadne type deterrence function |
gamma |
shape parameter 2 for ariadne type deterrence function |
Details
Power is generally used for simple gravity models, exponential and ariadne can be used for the Rihll-Wilson model.
alpha and gamma are only relevant for the ariadne type model and default to the values alpha=4 and gamma=1 like in Evans&Rivers 2017.
Value
a matrix containing the deterrence function
Author(s)
Daniel Knitter knitter@geographie.uni-kiel.de
Martin Hinz martin.hinz@iaw.unibe.ch
Benedikt Grammer benedikt.grammer@univie.ac.at
Kai Radloff kai.radloff@hu-berlin.de
Loren V. Cowin Lcowin@gshdl.uni-kiel.de
Clara Filet clara.filet@gmail.com
References
Evans Tim S., Rivers Ray J., Was Thebes Necessary? Contingency in Spatial Modeling. Frontiers in Digital Humanities 4, 2017, https://doi.org/10.3389/fdigh.2017.00008
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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