Random forest trees and variable importance

SmileRandomForest puts a smile on your face

See the code snippet below and find a full example here.


var classifier = ee.Classifier.smileRandomForest(5).setOutputMode('PROBABILITY').train(trainingSample,"land_class",bandNames);

var dict = classifier.explain();
print('Explain:',dict);

var variable_importance = ee.Feature(null, ee.Dictionary(dict).get('importance'));

var chart =
ui.Chart.feature.byProperty(variable_importance)
.setChartType('ColumnChart')
.setOptions({
title: 'Random Forest Variable Importance',
legend: {position: 'none'},
hAxis: {title: '<span id="mce_SELREST_start" style="overflow:hidden;line-height:0;">&#65279;</span>Bands'},
vAxis: {title: 'Importance'}
});

print(chart);

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