The gvisIntensityMap function reads a data.frame and creates text output referring to the Google Visualisation API, which can be included into a web page, or as a stand-alone page.
gvisIntensityMap(data, locationvar = "", numvar = "",
options = list(), chartid)
data.frame
. The data has to have at least two
columns with location name (locationvar
) and any number of
numeric columns (numvar
) to be mapped.data
with the geo locations to be
analysed. The location has to contain country ISO codes or USA state codes.data
with the numeric values to be
displayed.