answering my own question. figured it out with trial and error.
basically had to use *resolution*: 'countries', and also explicitly list
the *values* attribute to prevent interpolation which resulted in guam
being colored 'green' regardless of the value it represented.
function drawRegionsGuamMap()
{
var data = google.visualization.arrayToDataTable([
['State', 'Popularity'],
[ 'GU', 5 ]
]);
var options = {
resolution: 'countries',
// resolution: 'provinces',
displayMode: 'region',
region: 'GU',
legend: 'none',
colorAxis: {
values: [ 0, 1, 2, 3, 4, 5, 6, 7 ],
colors: ['white',
'red',
'purple',
'orange',
'yellow',
'cyan',
'blue',
'green'
] }
};
var chart = new google.visualization.GeoChart(document.
getElementById('regions_guam_div'));
chart.draw(data, options);
}
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