这次实验的目标是1990-2020年几个矢量集合当中的森林损失量,用到的函数:
ee.Reducer.frequencyHistogram()
Returns a Reducer that returns a (weighted) frequency table of its inputs.
返回一个返回其输入的(加权)频率表的Reducer。
No arguments.
Returns: Reducer
forEachBand(image)
Creates a Reducer by combining a copy of the given reducer for each band in the given image, using the band names as output names.
创建一个Reducer,为给定图像中的每一个波段组合一个给定的Reducer的副本,使用波段名称作为输出名称。
Arguments:
this:reducer (Reducer)
image (Image)
Returns: Reducer
研究区
代码:
//样本
var community_lands = ee.FeatureCollection("projects