forestfire {datana} | R Documentation |
Forest fire occurrence in central Chile
Description
Data of forest fire occurrence in central Chile having 7210
observations, with 890 cases of fire occurrence and
6320 cases of non-occurrence.
The binary variable (Y
) is the occurrence of forest
fire, where Y=1
to denotes occurrence and Y=0
,
otherwise.
Usage
data(forestfire)
Format
The data frame contains four variables as follows:
- fire
Occurrence of forest fire (1 yes, 0 no)
- xcoord
Geographic coordinate x.utm
- ycoord
Geographic coordinate y.utm
- aspect
Exposure (degrees from north)
- eleva
Elevation (m)
- slope
Slope (degrees)
- distr
Distance to dirt roads
- distcity
Distance to cities
- distriver
Distance to paved roads
- covera
Land use classifications according to a polygon
- coverb
Land use classifications according to a polygon
- tempe
Minimum temperature of the coldest month
- ppan
Annual precipitation
- ndii
Normalized difference infrared index
- nvdi
Normalized difference vegetation index
- tempe2
Minimum temperature of the warmest month
- ppan2
Precipitation of the driest month
- frec.fire
Frequency of fires
- perc.fire
Percentage of fire frequency
- fireClass
Class for frecuency fire
- asp.class
Class of variable exposure
- eleva.class
Class of numerical variable elevation
- slope.class
Class of numerical variable slope
- ndii.class
Normalized difference infrared index class
- nvdi.class
Normalized difference vegetation index class
Source
Data were provided by Dr Adison Altamirano at the Universidad de La Frontera (Temuco, Chile).
References
-Salas-Eljatib C, Fuentes-RamÃrez A, Gregoire TG, Altamirano A, Yaitul V. 2018. A study on the effects of unbalanced data when fitting logistic regression models in ecology. Ecological Indicators 85:502-508. doi:10.1016/j.ecolind.2017.10.030
Altamirano A, Salas C, Yaitul V, Smith-Ramirez C, Avila A. 2013. Infuencia de la heterogeneidad del paisaje en la ocurrencia de incendios forestales en Chile Central. Revista de Geografia del Norte Grande, 55:157-170.
Examples
data(forestfire)
head(forestfire)