/** ee.List.map(baseAlgorithm)* this: list - 输入对象,此例中为列表,map作用于它的每个元素上* baseAlgorithm - 处理函数,map将每个元素传递给它*/varlist1=ee.List([1,2,3,4]);varlist2=list1.map(function(x){returnee.Number(x).add(1);});print(list2);// [2, 3, 4, 5] 可以看到...
// The name of the property on the points storing the class label. var classProperty = 'landcover'; // Sample the composite to generate training data. Note that the // class label is stored in the 'landcover' property. var training = composite.select(bands).sampleRegions({ collection: ...
我正在尝试使用分类器对 Landsat 图像的土地利用进行分类,但是当我使用“classifier.conflusionMatrix”函数时,出现如下错误:Classifier confusionMatrix: Property 'type' of feature '000000000000000000014_ 0 ' 不见了。 (错误代码:3)。我不知道如何纠正它。我真的需要你的帮助来解决这个问题。对了,我终于记得分享资...
Map.addLayer(eeObject,visParams,name,shown,opacity) Adds a given EE object to the map as a layer. Returns the new map layer. Arguments: eeObject (Collection|Feature|Image|RawMapId): The object to add to the map. visParams (FeatureVisualizationParameters|ImageVisualizationParameters, optional):...
光谱分离是在地球引擎中实现的image.unmix()方法。以下是将 Landsat 5 与预先确定的城市、植被和水端元混合的示例: unmix(endmembers,sumToOne,nonNegative) Unmix each pixel with the given endmembers, by computing the pseudo-inverse and multiplying it through each pixel. Returns an image of doubles with...
Property to be plotted on the y-axis. seriesProperty (String): Property used to determine feature groups. Features with the same value of groupProperty will be plotted as a single series on the chart. Returns: ui.Chart cluster(clusterer,outputName) ...
var fvLayer = ui.Map.FeatureViewLayer('GLIMS/current_FeatureView'); var visParams = { color: { property: 'area', mode: 'linear', palette: ['gray', 'cyan', 'blue'], min: 0.0, max: 10.0 }, opacity: 0.8, polygonStrokeOpacity: 0 }; fvLayer.setVisParams(visParams); fvLayer.set...
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简介:Google Earth Engine(GEE) ——如何获取指定研究区范围内的单个影像的时间,这里求具体的天数,以landsat9影像为例。 这里我们首先就是要获取指定研究区范围的影像,这里不需要进行镶嵌,因为镶嵌之后影像会失去相应的属性,所以我们这里会使用一个函数,这里我们首先将其影像集合转化为矢量集合,然后通过aggregate_array(...
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