| accumulateDepths | Accumulate horizon depths, and reflect reversed depths,... |
| addBracket | Add Depth Brackets |
| addDiagnosticBracket | Annotate Diagnostic Features |
| addVolumeFraction | Symbolize Volume Fraction within a Soil Profile Collection... |
| aggregateColor | Summarize Soil Colors |
| aggregateSoilDepth | Probabilistic Estimation of Soil Depth within Groups |
| alignTransect | Calculate Relative Positions from Transect Data |
| allocate | Allocate soil properties within various classification... |
| aqp_df_class | Get aqp_df_class entry from metadata or return a safe value. |
| aqp-package | Algorithms for Quantitative Pedology |
| argillic.clay.increase.depth | Return upper boundary of argillic horizon |
| barron.torrent.redness.LAB | Barron & Torrent (1986) Redness Index in LAB color space |
| bootstrapSoilTexture | Bootstrap Soil Texture Data |
| brierScore | Multinominal Brier Score |
| buntley.westin.index | Buntley-Westin (1965) Index |
| ca630 | Soil Data from the Central Sierra Nevada Region of California |
| checkHzDepthLogic | Check a SoilProfileCollection object for errors in horizon... |
| checkSPC | Test for a valid 'SoilProfileCollection' |
| coercion-methods | Coerce SoilProfileCollection with 'as()' |
| col2Munsell | Convert colors into Munsell Notation |
| collapseHz | Collapse Horizons within Profiles Based on Pattern Matching |
| colorChart | Visualize soil colors in Munsell notation according to... |
| colorContrast | Metrics of Contrast Suitable for Comparing Soil Colors |
| colorContrastPlot | Color Contrast Plot |
| colorQuantiles | Soil Color Range via Quantiles |
| combine-SoilProfileCollection-method | Combine SoilProfileCollection objects |
| compareSites | Compare Site Level Attributes of a SoilProfileCollection |
| compositeSPC | Return a list representation of site and horizon level data |
| confusionIndex | Confusion Index |
| contrastChart | Color Contrast Chart |
| contrastClass | Soil Color Contrast |
| correctAWC | Apply rock fragment or salt correction to available water... |
| crit.clay.argillic | Determines threshold (minimum) clay content for argillic... |
| denormalize | Create a (redundant) horizon-level attribute from a... |
| depthOf | Get top or bottom depths of horizons matching a regular... |
| depths | Initialize a SoilProfileCollection from data.frame |
| depth_units | Get depth units from metadata |
| depthWeights | Return a vector of contributing fractions over a depth... |
| diagnostic_hz | Get or Set Diagnostic Horizon data in a SoilProfileCollection |
| dice-SoilProfileCollection-method | Efficient Slicing of 'SoilProfileCollection' Objects |
| dollarsign | Get data from column of horizon or site data in a... |
| dollarsign-set | Set data in column of horizon or site data in a... |
| doublebracket | Get column of horizon or site data in a SoilProfileCollection |
| doublebracket-set | Add or change column of horizon or site data in a... |
| duplicate | Duplicate Profiles of a SoilProfileCollection |
| electroStatics_1D | Label placement based on a simulation of electrostatic forces |
| equivalent_munsell | Indices of "equivalent" Munsell chips in the 'munsell' data... |
| equivalentMunsellChips | Identify "equivalent" (whole number value/chroma) Munsell... |
| estimateAWC | Estimate available water capacity for fine-earth fraction |
| estimatePSCS | Estimate boundaries of the U.S Soil Taxonomy Particle Size... |
| estimateSoilColor | Estimate dry soil colors from moist soil colors and vice... |
| estimateSoilDepth | Estimate Soil Depth |
| evalGenHZ | Evaluate Generalized Horizon Labels |
| evalMissingData | Evaluate Missing Data within a SoilProfileCollection |
| explainPlotSPC | Visual Explanation for 'plotSPC' |
| fillHzGaps | Find and Fill Horizon Gaps |
| fixOverlap | Fix Overlap within a Sequence |
| flagOverlappingHz | Flag perfectly overlapping horizons within a... |
| fragmentClasses | Coarse Fragment Class Labels and Diameter |
| fragmentSieve | Sieve the Coarse Fraction of Soil |
| generalize.hz | Generalize Horizon Names |
| genhzTableToAdjMat | Convert cross-tabulation to adjacency matrix. |
| genSlabLabels | Generate Labels for Slabs |
| getArgillicBounds | Estimate upper and lower boundary of argillic diagnostic... |
| getCambicBounds | Find all intervals that are potentially part of a Cambic... |
| getClosestMunsellChip | Get Approximate Munsell Chip |
| get.increase.matrix | Compute Pair-wise Distances of Soil Properties over Depth |
| getLastHorizonID | Get IDs of Deepest Horizons by Profile |
| get.ml.hz | Determine ML Horizon Boundaries |
| getSoilDepthClass | Generate Soil Depth Class Matrix |
| getSurfaceHorizonDepth | Determine thickness of horizons (continuous from surface)... |
| GHL | Get or Set Generalized Horizon Label (GHL) Column Name |
| glom | Subset soil horizon data using a depth or depth interval |
| glomApply | Subset an SPC by applying glom to each profile |
| grepSPC | Subset SPC with pattern-matching for text-based attributes |
| groupedProfilePlot | Grouped Soil Profile Plot |
| groupSPC | Store groupings within a profile collection. |
| guessGenHzLevels | Guess Appropriate Ordering for Generalized Horizon Labels |
| guessHzAttrName | Guess Horizon Slot Column Names |
| harden.melanization | Harden (1982) Melanization |
| harden.rubification | Harden (1982) Rubification |
| harmonize-SoilProfileCollection-method | Harmonize a property by profile-level denormalization for... |
| hasDarkColors | Find horizons with colors darker than a Munsell hue, value,... |
| horizonColorIndices | Horizon Color Indices |
| horizonDepths | Set horizon depth column names |
| horizonNames | Set horizon column names |
| horizons | Retrieve horizon data from SoilProfileCollection |
| huePosition | Munsell Hue Reference and Position Searching |
| huePositionCircle | Visual Description of Munsell Hue Ordering |
| hurst.redness | Hurst (1977) Redness Index |
| HzDepthLogicSubset | Subset 'SoilProfileCollection' Objects or Horizons via... |
| hzDepthTests | Tests of horizon depth logic |
| hzDesgn | Get horizon designation column name |
| hzdesgnname | Get or Set Horizon Designation Column Name |
| hz_dissolve | Dissolving horizon boundaries by grouping variables |
| hzDistinctnessCodeToOffset | Convert Horizon Boundary Distinctness to Vertical Offset |
| hzID | Set horizon IDs |
| hzidname | Set horizon ID column name |
| hz_intersect | Intersecting horizon boundaries by horizon depths |
| hz_lag | Find lagged horizon values |
| hzMetadata | Get horizon-level metadata |
| hzmetaname | Get or Set Horizon Metadata Column Name |
| hzOffset | Horizons Above or Below |
| hz_segment | Segmenting of Soil Horizon Data by Depth Interval |
| hztexclname | Get or Set Horizon Texture Class Column Name |
| hzTopographyCodeToLineType | Convert Horizon Boundary Topography to Line Type |
| hzTopographyCodeToOffset | Convert Horizon Boundary Topography to Vertical Offset |
| hz_to_taxpartsize | Allocate Particle Size Class for the Control Section. |
| hzTransitionProbabilities | Horizon Transition Probabilities |
| idname | Get profile ID column name |
| initSpatial | Initialize Spatial Data in a SoilProfileCollection |
| invertLabelColor | Make High Contrast Label Colors |
| isEmpty | Check for "empty" profiles in a SoilProfileCollection |
| jacobs2000 | Soil Morphologic Data from Jacobs et al. 2002. |
| L1_profiles | Create Representative Soil Profiles via L1 Estimator |
| length | Get the number of profiles in a SoilProfileCollection |
| lookup_taxpartsize | Ranking Systems for USDA Taxonomic Particle-Size and... |
| lunique | Eliminate duplicate instances of profile IDs in a list of... |
| max | Get the maximum bottom depth in a SoilProfileCollection |
| metadata | Retrieve metadata from SoilProfileCollection |
| min | Get the minimum bottom depth in a SoilProfileCollection |
| missingDataGrid | Missing Data Grid |
| mixMunsell | Mix Munsell Colors via Spectral Library |
| mollic.thickness.requirement | Calculate the minimum thickness requirement for Mollic... |
| munsell | Munsell to sRGB Lookup Table for Common Soil Colors |
| munsell2rgb | Convert Munsell Color Notation to other Color Space... |
| munsell2spc-SoilProfileCollection-method | Merge Munsell Hue, Value, Chroma converted to sRGB & CIELAB... |
| munsellHuePosition | Munsell Hue Position Reference |
| munsell.spectra | Spectral Library of Munsell Colors |
| mutate_profile | Transform a SPC (by profile) with a set of expressions |
| names | Get names of columns in site and horizons table |
| NCSP | Numerical Classification of Soil Profiles |
| nrow | Get the number of horizons in a SoilProfileCollection |
| osd | Example Output from soilDB::fetchOSD() |
| overlapMetrics | Find Overlap within a Sequence |
| panel.depth_function | Lattice Panel Function for Soil Profiles |
| parseMunsell | Parse Munsell Color Notation |
| pbindlist | Combine a list of SoilProfileCollection objects |
| perturb | Perturb soil horizon depths using boundary distinctness |
| plotColorMixture | Visualize Spectral Mixing of Munsell Colors |
| plotColorQuantiles | Visualize Color Quantiles |
| plot_distance_graph | Between Individual Distance Plot |
| plotMultipleSPC | Plot Multiple 'SoilProfileCollection' Objects |
| previewColors | Preview Colors |
| profileApply | Iterate over profiles in a SoilProfileCollection |
| profile_compare | Deprecated: Numerical Soil Profile Comparison |
| profileGroupLabels | Soil Profile Group Labels |
| profile_id | Set profile IDs |
| profileInformationIndex | Soil Profile Information Index |
| quickSPC | Quickly Assemble a SoilProfileCollection |
| random_profile | Random Profile |
| reaction | Convert pH to/from Reaction Classes |
| reactionclass | pH Reaction Classes |
| rebuildSPC | Rebuild a SoilProfileCollection object |
| reduceSPC | Select a subset of columns from a SoilProfileCollection |
| reorderHorizons | Re-order corrupted horizon data |
| repairMissingHzDepths | Repair Problematic Lower Horizon Depths |
| replaceHorizons | Replace Data in Horizon Slot |
| restrictions | Get or Set Restriction data in a SoilProfileCollection |
| rgb2munsell | sRGB to Munsell Color Conversion |
| ROSETTA.centroids | Average Hydraulic Parameters from the ROSETTA Model by USDA... |
| rowley2019 | Soil Morphologic, Geochemical, and Mineralogy Data from... |
| SANN_1D | Fix Overlap within a Sequence via Simulated Annealing |
| shannonEntropy | Shannon Entropy |
| show | SoilProfileCollection show method |
| sierraTransect | Soil Physical and Chemical Data Related to Studies in the... |
| sim | DEPRECATED Simulate Soil Profiles |
| simulateColor | Simulate Soil Colors |
| singlebracket | Matrix/data.frame-like access to profiles and horizons in a... |
| site | Retrieve site data from SoilProfileCollection |
| siteNames | Set site column names |
| slab | Slab-Wise Aggregation of SoilProfileCollection Objects |
| slice | Slicing of SoilProfileCollection Objects |
| slicedHSD | Tukey's HSD Over Slices |
| soilColorSignature | Soil Profile Color Signatures |
| soil_minerals | Munsell Colors of Common Soil Minerals |
| soilPalette | Soil Color Palette |
| SoilProfileCollection-class | An S4 object representation of a group of soil profiles. |
| SoilProfileCollection-crs | Get or Set Coordinate Reference System for... |
| SoilProfileCollection-plotting-methods | Create Soil Profile Sketches |
| soiltexture | Lookup tables for sand, silt, clay, texture class, and... |
| soilTextureColorPal | Soil Texture Color Palettes |
| SoilTextureLevels | Ranking Systems for USDA Soil Texture Classes |
| 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 |
| sp5 | Sample Soil Database #5 |
| sp6 | Soil Physical and Chemical Data from Manganiferous Soils |
| spc2mpspline-SoilProfileCollection-method | SoilProfileCollection wrapper for 'mpspline2::mpspline()' |
| spc_in_sync | Quickly assess relative state of site and horizon slots |
| SPC.with.overlap | Example SoilProfileCollection with Overlapping Horizons |
| spec2Munsell | Convert reflectance spectra to closest Munsell chip |
| spectral.reference | Standard Illuminants and Observers |
| splitLogicErrors | Split a 'SoilProfileCollection' into a list based on types of... |
| split-SoilProfileCollection-method | Split a SoilProfileCollection object into a list of... |
| subApply | Subset SPC based on result of performing function on each... |
| subsetHz-SoilProfileCollection-method | Subset the horizons in a SoilProfileCollection using logical... |
| subsetProfiles | DEPRECATED use subset |
| subset-SoilProfileCollection-method | Subset a SoilProfileCollection with logical expressions |
| summarizeSPC | Perform summaries on groups (from 'group_by') and create new... |
| tauW | Compute weighted naive and _tau_ statistics for a... |
| texture | Textural conversions |
| textureTriangleSummary | Soil Texture Low-RV-High as Defined by Quantiles |
| thicknessOf | Calculate Thickness of Horizons Matching Logical Criteria |
| thompson.bell.darkness | Thompson-Bell (1996) Index |
| traditionalColorNames | Traditional Soil Color Names |
| transform | Transform a SPC with expressions based on site or horizon... |
| unique | Uniqueness within a 'SoilProfileCollection' via MD5 Hash |
| unroll | Unroll Genetic Horizons |
| us.state.soils | US State Soils |
| validSpatialData | Check for valid spatial reference of profiles |
| warpHorizons | Inflate / Deflate Horizon Thickness |
| wilson2022 | Example Data from Wilson et al. 2022 |
| xtableTauW | Format a LaTeX table with results |
