lambda {ETAS} | R Documentation |
Clustering Part of Conditional Intensity Function of the ETAS Model
Description
A function to compute the clustering part of the conditional intensity function of the ETAS model at specified time and location.
Usage
lambda(t, x, y, param, object)
Arguments
t |
A numeric value. The time that the conditional intensity is to be computed at. |
x |
A numeric value. The x-coordinate of the location that the conditional intensity is to be computed at. |
y |
A numeric value. The y-coordinate of the location that the conditional intensity is to be computed at. |
param |
Vector of model parameters. |
object |
An object of class |
Details
For a given ,
and
, this function
computes
Value
A numeric value.
Author(s)
Abdollah Jalilian jalilian@razi.ac.ir
References
Zhuang J, Ogata Y, Vere-Jones D (2002). Stochastic Declustering of Space-Time Earthquake Occurrences. Journal of the American Statistical Association, 97(458), 369–380. doi:10.1198/016214502760046925.
Zhuang J, Ogata Y, Vere-Jones D (2006). Diagnostic Analysis of Space-Time Branching Processes for Earthquakes. In Case Studies in Spatial Point Process Modeling, pp. 275–292. Springer Nature. doi:10.1007/0-387-31144-0_15.
See Also
Examples
iran.cat <- catalog(iran.quakes, time.begin="1973/01/01",
study.start="1996/01/01", study.end="2016/01/01",
lat.range=c(25, 42), long.range=c(42, 63), mag.threshold=4.5)
param <- c(0.46, 0.23, 0.022, 2.8, 1.12, 0.012, 2.4, 0.35)
## Not run:
lambda(15706, 40.12, 34.5, param, iran.cat)
## End(Not run)