histniche {adehabitat} | R Documentation |
histniche
draws histograms of the niche-environment system: an
histogram of the available resource units (environment) is drawn on
the same graph as an histogram of the used resource units (i.e. the
niche), for comparison.
histniche(x, pr, type = c("h", "l"), adjust = 1, Acol, Ucol, Aborder, Uborder, Alwd = 1, Ulwd = 1, ylim, ncla = 15, ...)
x |
a data frame giving the value of environmental variables (columns) in resource units (rows, e.g. the pixels of a raster map) |
pr |
a vector of integers with the same length as nrow(x)
(giving for example the number of detections in the pixels) |
type |
what type of plot should be drawn. Possible types are: * "h" for histograms,* "l" for kernel density estimates (see ?density ).By default, type = "h" is used. If type = "l" is used,
the position of the mean of each distribution is indicated by dotted
lines |
adjust |
if type = "l" , a parameter used to control the
bandwidth of the density estimate (see ?density ) |
Acol |
color for the histograms of the available pixels |
Ucol |
color for the histograms of the used pixels |
Aborder |
if type = "h" , color for the border of the
histograms of the available pixels (see help(hist.default) ) |
Uborder |
if type = "h" , color for the border of the
histograms of the used pixels (see help(hist.default) ) |
Alwd |
if type = "l" , line width for the density estimate
of the available pixels |
Ulwd |
if type = "l" , line width for the density estimate
of the used pixels |
ylim |
the limits for the y axis |
ncla |
The number of classes of the histogram |
... |
further arguments passed to or from other methods |
Mathieu Basille basille@biomserv.univ-lyon1.fr
## Not run: data(puechabon) cp <- count.points(puechabon$locs[,c("X","Y")], puechabon$kasc) puechabon$kasc li <- kasc2df(puechabon$kasc) cpi <- c(cp)[li$index] histniche(li$tab, cpi) histniche(li$tab, cpi, ty="l") ## End(Not run)