Example comparing used versus available blue grouse
winter habitat described by the basal area measurements of four species of trees present in stands on winter range.
Usage
data(habitat)
Format
A data frame with 16 observations on the following 5 variables.
use
An indicator of which habitat was used by blue grouse (1) and which was available (2).
dfir
Basal area (m^2/ha) for Douglas-fir.
junip
Basal area (m^2/ha)for juniper.
aspen
Basal area (m^2/ha)for aspen.
other
Basal area (m^2/ha)for other trees.
Source
Cade, B.S., and R.W. Hoffman. 1990. Winter use of Douglas-fir forests by blue grouse in Colorado. Journal of Wildlife Management54, 471–479.
Examples
Use<-c("Used","Available")
par(mfrow = c(2,2),mar = c(3,4,3,2))
boxplot(habitat$dfir~Use[habitat$use],col = "darkgreen",
main = "Fir basal area measurement\n in used and available habitat",
ylab = "Basal Area Measurement")
boxplot(habitat$junip~Use[habitat$use],col = "blue",
main = "Juniper basal area measurement\n in used and available habitat",
ylab = "Basal Area Measurement")
boxplot(habitat$aspen~Use[habitat$use],col = "orange",
main = "Aspen basal area measurement\n in used and available habitat",
ylab = "Basal Area Measurement")
boxplot(habitat$other~Use[habitat$use],col = "brown",
main = "Other basal area measurement\n in used and available habitat",
ylab = "Basal Area Measurement")
Results
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
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Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(Blossom)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/Blossom/habitat.Rd_%03d_medium.png", width=480, height=480)
> ### Name: habitat
> ### Title: Blue grouse winter habitat selection data
> ### Aliases: habitat
> ### Keywords: datasets
>
> ### ** Examples
>
> Use<-c("Used","Available")
> par(mfrow = c(2,2),mar = c(3,4,3,2))
> boxplot(habitat$dfir~Use[habitat$use],col = "darkgreen",
+ main = "Fir basal area measurement\n in used and available habitat",
+ ylab = "Basal Area Measurement")
> boxplot(habitat$junip~Use[habitat$use],col = "blue",
+ main = "Juniper basal area measurement\n in used and available habitat",
+ ylab = "Basal Area Measurement")
> boxplot(habitat$aspen~Use[habitat$use],col = "orange",
+ main = "Aspen basal area measurement\n in used and available habitat",
+ ylab = "Basal Area Measurement")
> boxplot(habitat$other~Use[habitat$use],col = "brown",
+ main = "Other basal area measurement\n in used and available habitat",
+ ylab = "Basal Area Measurement")
>
>
>
>
>
>
> dev.off()
null device
1
>