gvisGeoMap(data, locationvar = "", numvar = "", hovervar = "",
options = list(), chartid)data.frame. The data has to have at least two
columns with location name (locationvar), value to be mapped
to location (numvar) and an optional variable to display any
text while the mouse hovers over the location (<data with the geo locations to be
analysed. The locations can be provide in two formats:[object Object],[object Object]
data with the numeric value
displayed when the user hovers over this region.data with the additional string
text displayed when the user hovers over this region.