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Table 1 Summary of attributes in the output shapefile

From: GridSample: an R package to generate household survey primary sampling units (PSUs) from gridded population data

Label Type Description
PSUid Integer PSU identifier
stratum Integer Stratum identifier
psu_pop Decimal Estimated population in PSU derived by summing the seed cell and any growth cells selected for PSU
psu_r_pop Decimal Estimated rural population in PSU derived by summing all rural cells selected for PSU
psu_u_pop Decimal Estimated urban population in PSU derived by summing all urban cells selected for PSU
psus_in_stratum Integer Number of PSUs in the stratum
str_pop Decimal Estimated population in stratum derived by summing all grid cells
str_r_pop Decimal Estimated rural population in stratum derived by summing all grid cells classified as rural
str_u_pop Decimal Estimated urban population in stratum derived by summing all grid cells classified as urban
str_cells Integer Number of total cells in the stratum
xCent Decimal Longitude of PSU seed cell centroid in decimal degrees
yCent Decimal Latitude of PSU seed cell centroid in decimal degrees
U_R Character Urban or rural label based on whether the seed cell was classified as urban or rural