| plot.geodata {geoR} | R Documentation |
This function produces a 2 x 2 graphics display with the following plots: the first indicates spatial locations, the second is a 3-D plot with spatial locations and associated data values (or a histogram of the data), and the last two shows data against the X and Y coordinates.
plot.geodata(geodata, coords=geodata$coords, data = geodata$data,
trend="cte", lambda = 1, col.data = 1, weights.divide = FALSE,
window.new = FALSE, ...)
geodata |
a list containing elements coords and
data described next. Typically an object of the class
"geodata" - a geoR data-set. If not provided the arguments
coords and data must be provided instead. |
coords |
an n x 2 matrix containing in each row Euclidean
coordinates of the n data locations. By default it takes the
element coords of the argument geodata. |
data |
a vector with data values. By default it takes the
element data of the argument geodata. |
trend |
specifies the mean part of the model. The options are:
"cte" (constant mean - default option), "1st" (a first degree polynomial
on the coordinates), "2nd" (a second degree polynomial
on the coordinates), or a formula of the type ~X where X
is a matrix with the covariates (external trend).
If provided the trend is "removed" using the function
lm and the residuals are plotted. |
lambda |
value of the Box-Cox transformation parameter. Two particular cases are lambda = 1 which corresponds to no transformation and lambda = 0 corresponding to the log-transformation. |
col.data |
indicates the number of the column of the data
to be plotted. Only valid if more than one data-set is available
i.e., if the argument data is a matrix. |
weights.divide |
if a vector of weights with the same length as
the data is provided each data is
divided by the corresponding element in this vector.
Defaults to NULL. |
window.new |
logical. If TRUE a new graphic device is openned,
otherwise the current one is used. Defaults to FALSE. |
... |
further arguments to be passed to the function
scatterplot3d. |
By default, this function requires the package
scatterplot3d in order to produce a 3-D plot with data
locations and coordinates. If this package is not available an
histogram of the data replaces the 3-D plot.
A plot is produced on the graphics device. No values are returned.
Paulo J. Ribeiro Jr. Paulo.Ribeiro@est.ufpr.br,
Peter J. Diggle p.diggle@lancaster.ac.uk.
Further information about geoR can be found at:
http://www.maths.lancs.ac.uk/~ribeiro/geoR.html.
points.geodata, scatterplot3d.
if(is.R()) data(s100) plot(s100)