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aqp (version 1.16-3)

Algorithms for Quantitative Pedology

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 . 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 . 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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Install

install.packages('aqp')

Monthly Downloads

2,013

Version

1.16-3

License

GPL (>= 3)

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Maintainer

DE Beaudette

Last Published

September 24th, 2018

Functions in aqp (1.16-3)

brierScore

Multinominal Brier score
f.noise

Example Objective Function for Full-Pattern Matching
estimateSoilDepth

Estimate Soil Depth
munsell

Munsell to sRGB Lookup Table for Common Soil Colors
missingDataGrid

Missing Data Grid
confusionIndex

Confusion Index
hzTransitionProbabilities

Horizon Transition Probabilities
hzDistinctnessCodeToOffset

Convert Horizon Distinctness Codes
amarillo

Amarillo Soils
aqp-package

Algorithms for Quantitative Pedology
munsell2rgb

Convert Munsell Notation to and from sRGB color coordinates
profileGroupLabels

Soil Profile Group Labels
panel.depth_function

Lattice Panel Function for Soil Profiles
aggregateSoilDepth

Probabalistic Estimation of Soil Depth
profileApply-methods

Apply a function to soil profiles within a SoilProfileCollection object.
sp5

Sample Soil Database #5
ca630

Soil Data from the Central Sierra Nevada Region of California
getSoilDepthClass

Generate Soil Depth Class Matrix
get.ml.hz

Determine ML Horizon Boundaries
profile_compare-methods

Numerical Soil Profile Comparison
resample.twotheta

Resample an XRD Pattern
evalGenHZ

Evaluate Generalized Horizon Labels
rruff.sample

Sample XRD Patterns
plotMultipleSPC

Plot Multiple SoilProfileCollection Objects
plot_distance_graph

Between Individual Distance Plot
sp6

Soil Physical and Chemical Data from Manganiferous Soils
soilColorSignature

Soil Profile Color Signatures
random_profile

Random Profile
evalMissingData

Evaluate Missing Data
soil_minerals

Munsell Colors of Common Soil Minerals
generalize.hz

Generalize Horizon Names
groupedProfilePlot

Grouped Soil Profile Plot
textureTriangleSummary

Soil Texture Low-RV-High as Defined by Quantiles
sim

Simulate Soil Profiles
guessGenHzLevels

Guess Appropriate Ordering for Generalized Horizon Labels
shannonEntropy

Shannon Entropy
test_hz_logic

Test Horizon Logic
subsetProfiles-methods

Subset SoilProfileCollection Objects.
tau

Compute weighted na<U+00EF>ve and tau statistics for a cross-classification matrix
unroll

Unroll Genetic Horizons
sp1

Soil Profile Data Example 1
sp2

Honcut Creek Soil Profile Data
sp3

Soil Profile Data Example 3
sp4

Soil Chemical Data from Serpentinitic Soils of California
aggregateColor

Summarize Soil Colors
SPC-utils

Getters, Setters, and Utility Methods for SoilProfileCollection Objects
SoilProfileCollection-class

SoilProfileCollection Class
addBracket

Add Depth Brackets
addVolumeFraction

Symbolize Volume Fraction on a Soil Profile Collection Plot
SoilProfileCollection-plotting-methods

Profile Plot
slab-methods

Slab-Wise Aggregation of SoilProfileCollection Objects
slice-methods

Slicing of SoilProfilecollection Objects
unique-methods

Get Indices to Unique Soil Profiles Within a Collection