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.
Downloads
2.2K
Last 30 days
2614th
5.7K
Last 90 days
36.3K
Last year
Trend: +32% (30d vs prior 30d)
29
Last 30 days
132
Last 90 days
407
Last year
Trend: -39.6% (30d vs prior 30d)
7
Last 7 days
64
Last 30 days
0
All-time
autoCRAN-only: this name is served only by autoCRAN, so the count is exact.
540
Last 30 days
1.4K
Last 90 days
6.6K
Last year
Trend: -6.4% (30d vs prior 30d)
CRAN Check Status
Show all 13 flavors
| Flavor | Status |
|---|---|
| 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-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| 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 History
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 29, 2026
ERROR 10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 24, 2026
re-building of vignette outputs
Error(s) in re-building vignettes: ... --- re-building ‘Introduction-to-SoilProfileCollection-Objects.Rmd’ using rmarkdown --- finished re-building ‘Introduction-to-SoilProfileCollection-Objects.Rmd’ --- re-building ‘Munsell-color-conversion.Rmd’ ...[truncated]... ilding ‘label-placement.Rmd’ --- re-building ‘new-in-aqp-2.Rmd’ using rmarkdown --- finished re-building ‘new-in-aqp-2.Rmd’ SUMMARY: processing the following file failed: ‘label-placement.Rmd’ Error: Vignette re-building failed. Execution halted
installed package size
installed size is 7.0Mb
sub-directories of 1Mb or more:
R 2.1Mb
data 2.0Mb
doc 2.0Mb
installed package size
installed size is 7.0Mb
sub-directories of 1Mb or more:
R 2.1Mb
data 2.0Mb
doc 2.0Mb
installed package size
installed size is 6.2Mb
sub-directories of 1Mb or more:
R 1.2Mb
data 2.0Mb
doc 2.0Mb
NOTE 11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
installed package size
installed size is 6.9Mb
sub-directories of 1Mb or more:
R 2.0Mb
data 2.0Mb
doc 1.9Mb
installed package size
installed size is 6.9Mb
sub-directories of 1Mb or more:
R 2.0Mb
data 2.0Mb
doc 1.9Mb
installed package size
installed size is 6.1Mb
sub-directories of 1Mb or more:
R 1.2Mb
data 2.0Mb
doc 1.9Mb
Code
Structure
Lines of code
61,652
Files
508
Compiled share
0%
Has compiled src
No
Language breakdown
API
Exported functions
171
Internal functions
105
Recent export changes
Testing & CI
Has tests
Yes
Test-to-code ratio
0.23
testthat edition
–
CI present
No
CI type
[]
PR gated
No
Docs
Return-value doc rate
88.4%
\dontrun example ratio
4.4%
Roxygen coverage
100%
Has pkgdown
No
NEWS present
Yes
Health & Security signals
Informational signals; not verdicts.
on.exit coverage
7.7%
Unsafe pattern score
18
Dep constraint coverage
0%
Secret pattern count
0
Bundled 3rd-party code
2 items
Portability & License
Min R version
4.1.0
System requirements
–
C++ standard
–
License
GPL (>= 3)
License flags
SPDX valid, OSI approved
History
Versions
73
First release
2010-05-07
Latest release
2026-04-30
Avg cadence
62 days
Cold removal rate
100%
Dep drift
34
LOC over versions
Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.