spsurvey

Spatial Sampling Design and Analysis

CRAN Package

A design-based approach to statistical inference, with a focus on spatial data. Spatially balanced samples are selected using the Generalized Random Tessellation Stratified (GRTS) algorithm. The GRTS algorithm can be applied to finite resources (point geometries) and infinite resources (linear / linestring and areal / polygon geometries) and flexibly accommodates a diverse set of sampling design features, including stratification, unequal inclusion probabilities, proportional (to size) inclusion probabilities, legacy (historical) sites, a minimum distance between sites, and two options for replacement sites (reverse hierarchical order and nearest neighbor). Data are analyzed using a wide range of analysis functions that perform categorical variable analysis, continuous variable analysis, attributable risk analysis, risk difference analysis, relative risk analysis, change analysis, and trend analysis. spsurvey can also be used to summarize objects, visualize objects, select samples that are not spatially balanced, select panel samples, measure the amount of spatial balance in a sample, adjust design weights, and more. For additional details, see Dumelle et al. (2023) doi:10.18637/jss.v105.i03.


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Insights

Last 30 days

This package has been downloaded 964 times in the last 30 days. This could be a paper that people cite without reading. Reaching the medium popularity echelon is no small feat! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 33 times.

Sun
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Tue
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Thu
Fri
Sat
0 downloadsFeb 9, 2025
0 downloadsFeb 10, 2025
0 downloadsFeb 11, 2025
0 downloadsFeb 12, 2025
22 downloadsFeb 13, 2025
71 downloadsFeb 14, 2025
26 downloadsFeb 15, 2025
48 downloadsFeb 16, 2025
21 downloadsFeb 17, 2025
38 downloadsFeb 18, 2025
19 downloadsFeb 19, 2025
144 downloadsFeb 20, 2025
19 downloadsFeb 21, 2025
13 downloadsFeb 22, 2025
21 downloadsFeb 23, 2025
7 downloadsFeb 24, 2025
7 downloadsFeb 25, 2025
18 downloadsFeb 26, 2025
74 downloadsFeb 27, 2025
5 downloadsFeb 28, 2025
14 downloadsMar 1, 2025
14 downloadsMar 2, 2025
22 downloadsMar 3, 2025
23 downloadsMar 4, 2025
91 downloadsMar 5, 2025
18 downloadsMar 6, 2025
11 downloadsMar 7, 2025
17 downloadsMar 8, 2025
7 downloadsMar 9, 2025
32 downloadsMar 10, 2025
27 downloadsMar 11, 2025
56 downloadsMar 12, 2025
46 downloadsMar 13, 2025
33 downloadsMar 14, 2025
0 downloadsMar 15, 2025
5
144

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Last 365 days

This package has been downloaded 10,365 times in the last 365 days. The academic equivalent of having a dedicated subreddit. There are fans, and maybe even a few trolls! The day with the most downloads was Feb 20, 2025 with 144 downloads.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Data provided by CRAN


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Dependencies

  • Depends2 packages
  • Imports7 packages
  • Suggests3 packages
  • Reverse Imports1 package
  • Reverse Suggests2 packages