Functions for Soil Texture Plot, Classification and Transformation
soiltexture: Functions for Soil Texture Plot, Classification and Trans...
Text-based menu for plotting and classifying soil texture data
Display and / or export system and package version information
Function to add a new default package parameters.
Internal. Create an empty plot scene for a texture triangle.
Compute the additive log-ratio transformation of compositional data.
Plot the texture classes polygons in a texture triangle plot.
Returns the table of classes of a texture classification system.
Wrapper for the contour() function adapted to texture triangles.
Test the validity of some soil texture data table (3 particle size cla...
Test the validity of some soil texture data table (X particle size cla...
Genetates a virtual cross correlated clay silt sand + Z dataset.
Convert a soil particle diameter dia [micro-meters] into phi = -log2(d...
Retrieve and return the geometrical parameters from a list of paramete...
Function to retrieve / get the default package parameters.
Plot a grid at regular texture intervals inside an existing soil textu...
Wrapper for the image() function adapted to texture triangles.
Inverse weighted distance interpolation on a grid.
Calculated the 2D probabilty density on an x-y grid.
Interactive (mouse clic) retrieval the CLAY SILT SAND coordinate of po...
Calculates the Mahalanobis distance between clay silt and sand.
Normalises the sum of the 3 particle size classes.
Normalises the sum of the X particle size classes.
Plot soil texture triangles / diagrams.
Classify a table of soil texture data according to a soil texture tria...
Plot a soil texture data table as points on an existing texture plot.
Function to change / set the default package parameters.
Stretch or reshape the range of value of some data set.
Plot text labels for each values of a soil texture data table on an ex...
Log-linear transformation of a soil texture data table between 2 parti...
Log-linear transformation of a soil texture data table between 2 parti...
Plot the vertices of a texture classification system.
Returns the table of vertices of a texture classification system.
"The Soil Texture Wizard" is a set of R functions designed to produce texture triangles (also called texture plots, texture diagrams, texture ternary plots), classify and transform soil textures data. These functions virtually allows to plot any soil texture triangle (classification) into any triangle geometry (isosceles, right-angled triangles, etc.). This set of function is expected to be useful to people using soil textures data from different soil texture classification or different particle size systems. Many (> 15) texture triangles from all around the world are predefined in the package. A simple text based graphical user interface is provided: soiltexture_gui().
Useful links