I am doing a simple Random Forest classification in Google Earth Engine. I try to classify upland, water and wetlands, using 25 variables derived from one year of Sentinel-1 images. The classifier works well and the accuracy is okay, but now I want to calculate a variable importance for my classifier.
There seems to be no function in Earth Engine for calculating variable importance. The only workaround I could think of is exporting the stacked image to R, and do the classification there. However, this might be a complicated solution, due to the size of the study area and the high number of variables. Is there a simple work-around to calculate variable importance in Earth Engine?