摘要
创建栅格对象,其中每个像素包含多个栅格中的指定百分位值。
说明
栅格对象所引用的栅格数据集是临时性的。 要将其设置为永久,可以调用栅格对象的 save 方法。
语法
Percentile (rasters, {percentile_value}, {percentile_interpolation_type}, {extent_type}, {cellsize_type}, {ignore_nodata}, {process_as_multiband})
参数 | 说明 | 数据类型 |
rasters [rasters,...] | The list of input rasters. | Raster |
percentile_value | The percentile value to calculate. (默认值为 90) | Double |
percentile_interpolation_type | The interpolation method used when the specified percentile value lies between two input cell values.
(默认值为 AUTO_DETECT) | String |
extent_type | The method that will be used to compute the extent of the output when the input rasters have different extents.
(默认值为 FirstOf) | String |
cellsize_type | The method that will be used to compute the pixel size of the output when the input rasters have different pixel sizes.
(默认值为 FirstOf) | String |
ignore_nodata | Specifies whether NoData values will be ignored in the calculation.
(默认值为 False) | Boolean |
process_as_multiband | Specifies how the bands of the input rasters will be processed.
(默认值为 False) | Boolean |
数据类型 | 说明 |
Raster | 输出栅格。 |
代码示例
计算其中包含三个多波段栅格的第 90 个百分位值的栅格对象。
from arcpy.ia import *
rc = RasterCollection([landsat_1, landsat_2, landsat_3])
percentile_raster = Percentile(rc, percentile_value = 90, percentile_interpolation_type = "AUTO_DETECT", extent_type = "UnionOf", cellsize_type = "MinOf",
ignore_nodata = True, process_as_multiband = True)