The combining of GIS, spatialmean center statistics and spatial autocorrelation statistics, has provided us with visualized spatial information of spatial pattern change of grain production.
Using the spatial scan method, the paper made magnitude frequency statistics according to the regions and calculated mean seismic number.
本文采用空间扫描方法，按选区和时段做震级—频度统计，计算年平均地震数。
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The imaginary part of the complex self energy of electron provides spatial and angular dependent differential inverse inelastic mean free path (DIIMFP).