North American Grid-Based Sampling Frame: Mexico
收藏data.gov2026-01-10 收录
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This sampling frame is a set of grid-based finite-area frames spanning Canada, the United States, and Mexico. The grid for the United States is broken into individual...
本抽样框（sampling frame）为一套覆盖加拿大、美国与墨西哥的基于网格的有限区域抽样框。美国的网格被拆分为独立的……
