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aqp

Algorithms for Quantitative Pedology

v2.3.1 · Mar 19, 2026 · GPL (>= 3)

Description

The Algorithms for Quantitative Pedology (AQP) project was started in 2009 to organize a loosely-related set of concepts and source code on the topic of soil profile visualization, aggregation, and classification into this package (aqp). Over the past 8 years, the project has grown into a suite of related R packages that enhance and simplify the quantitative analysis of soil profile data. Central to the AQP project is a new vocabulary of specialized functions and data structures that can accommodate the inherent complexity of soil profile information; freeing the scientist to focus on ideas rather than boilerplate data processing tasks <doi:10.1016/j.cageo.2012.10.020>. These functions and data structures have been extensively tested and documented, applied to projects involving hundreds of thousands of soil profiles, and deeply integrated into widely used tools such as SoilWeb <https://casoilresource.lawr.ucdavis.edu/soilweb-apps>. Components of the AQP project (aqp, soilDB, sharpshootR, soilReports packages) serve an important role in routine data analysis within the USDA-NRCS Soil Science Division. The AQP suite of R packages offer a convenient platform for bridging the gap between pedometric theory and practice.

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CRAN Check Status

3 NOTE
11 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 NOTE
r-oldrel-macos-x86_64 NOTE
r-oldrel-windows-x86_64 NOTE
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK
Check details (3 non-OK)
NOTE r-oldrel-macos-arm64

installed package size

installed size is  7.0Mb
  sub-directories of 1Mb or more:
    R      2.1Mb
    data   2.0Mb
    doc    2.0Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  7.0Mb
  sub-directories of 1Mb or more:
    R      2.1Mb
    data   2.0Mb
    doc    2.0Mb
NOTE r-oldrel-windows-x86_64

installed package size

installed size is  6.2Mb
  sub-directories of 1Mb or more:
    R      1.2Mb
    data   2.0Mb
    doc    2.0Mb

Check History

NOTE 11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is  6.9Mb
  sub-directories of 1Mb or more:
    R      2.0Mb
    data   2.0Mb
    doc    1.9Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is  6.9Mb
  sub-directories of 1Mb or more:
    R      2.0Mb
    data   2.0Mb
    doc    1.9Mb
NOTE r-oldrel-windows-x86_64

installed package size

installed size is  6.1Mb
  sub-directories of 1Mb or more:
    R      1.2Mb
    data   2.0Mb
    doc    1.9Mb

Reverse Dependencies (2)

imports

suggests

Dependency Network

Dependencies Reverse dependencies lattice cluster data.table farver digest colorspace ape sharpshootR soilDB aqp

Version History

updated 2.3.1 ← 2.3 diff Mar 20, 2026
new 2.3 Mar 10, 2026
updated 2.3 ← 2.2-1 diff Jan 16, 2026
updated 2.2-1 ← 2.2 diff Sep 16, 2025
updated 2.2 ← 2.1.0 diff Feb 14, 2025
updated 2.1.0 ← 2.0.4 diff Oct 18, 2024
updated 2.0.4 ← 2.0.3 diff Jul 29, 2024
updated 2.0.3 ← 2.0.2 diff Apr 17, 2024
updated 2.0.2 ← 2.0.1 diff Nov 27, 2023
updated 2.0.1 ← 2.0 diff Sep 5, 2023
updated 2.0 ← 1.42 diff Aug 27, 2023
updated 1.42 ← 1.41 diff Apr 11, 2022
updated 1.41 ← 1.40 diff Feb 10, 2022
updated 1.40 ← 1.32 diff Jan 4, 2022
updated 1.32 ← 1.31 diff Sep 28, 2021
updated 1.31 ← 1.30 diff Aug 18, 2021
updated 1.30 ← 1.29 diff Jul 26, 2021
updated 1.29 ← 1.27 diff Apr 7, 2021
updated 1.27 ← 1.25 diff Jan 25, 2021
updated 1.25 ← 1.19 diff Oct 19, 2020