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pedometrics (version 0.4-1)

Pedometric Tools and Techniques

Description

This package contains functions to employ many tools and techniques used in the field of pedometrics (see http://en.wikipedia.org/wiki/Pedometrics for definition of pedometrics). These functions were developed to fulfil the demands created by the PhD research project (2012-2016) entitled Contribution to the Construction of Models for Predicting Soil Properties, developed by Alessandro Samuel-Rosa under the supervision of Dr Lucia HC Anjos (Universidade Federal Rural do Rio de Janeiro, Brazil), Dr Gustavo M Vasques (Embrapa Solos, Brazil), and Dr Gerard BM Heuvelink (ISRIC - World Soil Information, the Netherlands). The project is supported by the CAPES, Ministério da Educação, Brasília - DF 70040-020, Brazil, process ID BEX 11677/13-9. Several functions are simple wrapper functions that extend the functionalities of other functions commonly used for the analysis of pedometric data. It should be noted that changes are likely to occur quite often and using this package as a dependency for other packages is strongly discouraged.

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Version

Install

install.packages('pedometrics')

Monthly Downloads

795

Version

0.4-1

License

GPL (>= 2)

Maintainer

Alessandro SamuelRosa

Last Published

December 1st, 2014

Functions in pedometrics (0.4-1)

cdfPlot

Plot estimated cumulative distribution function with confidence limits
buildMS

Build a series of linear models using automated variable selection
cdfTable

Table with descriptive statistics of an estimated cummulative distribution function
adjR2

Adjusted coefficient of determination
statsMS

Obtain performance statistics of a series of linear models
pedometrics-package

Pedometric Tools and Techniques
cdfStats

Descriptive statistics of the cumulative distribution function of a continuos variable
plotESDA

Plots for exploratory spatial data analysis (ESDA)
spsannPPL

Optimization of spatial samples for variogram estimation
stepVIF

Variable selection using the variance-inflation factor
plotHD

Histogram and density plot
plotMS

Model series plot
coordenadas

Prepare object for argument design of spsurvey.analysis()
rowMinCpp

Return the minimum value in each row of a numeric matrix
spJitterFinite

Random perturbation of spatial points
gcpDiff

Diffence on xyz coordinates between ground control points
gcpVector

Calculate module and azimuth
bbox2sp

Create Spatial object from a bounding box
spsannMSSD

Optimization of spatial samples for spatial interpolation