hzTopographyCodeToOffset

This function will convert USDA-NCSS horizon boundary topography codes into a vertical offset, suitable for use in <code>plotSPC</code>. Default values are reasonable starting points for encoding smooth, wavy, irregular, or broken style horizon boundary topography as defined in <a href="https://nrcspad.sc.egov.usda.gov/DistributionCenter/product.aspx?ProductID=991">Field Book for Describing and Sampling Soils, version 3.0</a>.

manip

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.

Dylan Beaudette

Algorithms for Quantitative Pedology

Pierre Roudier

Andrew Brown

hzTopographyCodeToOffset function

<dl><dt>x</dt>
<dd>vector of boundary topography codes to be converted</dd>
<dt>codes</dt>
<dd>character vector of topography terms ('smooth') or codes ('S'), case insensitive, see details</dd>
<dt>offset</dt>
<dd>vertical offset (depth units) used to create "chevron" effect</dd></dl>

Arguments

Author

This function will convert USDA-NCSS horizon boundary topography codes into a vertical offset, suitable for use in <code>plotSPC</code>. Default values are reasonable starting points for encoding smooth, wavy, irregular, or broken style horizon boundary topography as defined in <a href='https://nrcspad.sc.egov.usda.gov/DistributionCenter/product.aspx?ProductID=991'>Field Book for Describing and Sampling Soils, version 3.0</a>.

Convert Horizon Boundary Topography to Vertical Offset — hzTopographyCodeToOffset

<dl>

<dt>x</dt>
<dd>vector of boundary topography codes to be converted</dd>


<dt>codes</dt>
<dd>character vector of topography terms ('smooth') or codes ('S'), case insensitive, see details</dd>


<dt>offset</dt>
<dd>vertical offset (depth units) used to create "chevron" effect</dd>

</dl>

hzTopographyCodeToOffset: Convert Horizon Boundary Topography to Vertical Offset

Description

Usage

Value

Arguments

Author

Details

References

See Also