plot.surface {fields}R Documentation

Plots a surface

Description

Plots a surface object in several different ways to give 3-d information e.g. a contour plots, perspective plots.

Usage

plot.surface(x, main = NULL, type = "b", zlab = NULL, xlab = NULL,
    ylab = NULL, levels = NULL, zlim = NULL, graphics.reset = NULL,
     labcex = 0.6, ...)

Arguments

x A surface object. At the minimum a list with components x,y and z in the same form as the input list for the standard contour, persp or image functions. This can also be an object from predict.surface.
main Title for plot.
type type="p" for a perspective plot, type="c" for a contour plot and type="b" for both (default). type="I" for an image plot with a legend strip (see image.plot). type="C" is the "I" option with contours lines added.
zlab z-axes label
xlab x-axes label
ylab y-axes labels
levels Vector of levels to be passed to contour function.
graphics.reset Reset to original graphics parameters after function plotting. Default is to reset if type ="b" but not for the single plot options.
zlim Sets z limits on perspective plot.
labcex Label sizes for axis labeling etc.
... Other graphical parameters that are passed along to either persp, contour or image.

See Also

surface, predict.surface, as.surface,

Examples

fit<- Tps( BD[,1:4], BD$lnya) # fit surface to data 

# make grid list 
grid<-list( KCl="x", MgCl2=mean(BD[,2]),KPO4="y", dNTP=mean(BD[,4]))

# evalute on a grid on two 
# variables holding two fixed at their mean levels 
out.p<-predict.surface(fit, grid, extrap=TRUE)  

plot.surface(out.p, type="C") # surface plot  

[Package fields version 2.0.1 Index]