rowDist


A matrix whose rows will be used for the distance calculation.



A character; one of <code>c("pearson", "correlation", "spearman", "kendall", "euclidean", "maximum", "manhattan", "canberra","binary", "minkowski", "cosine")</code>.


method


This function is a wrapper to compute the distance between rows of a matrix using a number of methods.  Some of these are available in package <code><a rd-options="" href="/link/stats?package=ChemoSpec&version=4.3.34" data-mini-rdoc="ChemoSpec::stats">stats</a></code> and some in <code>Dist</code> in package <code>amap</code>.  All this function does is determine which method is requested and then the distance calculation is done by the appropriate method. The exception is the cosine distance which is calculated locally.


 utilities

A collection of functions for top-down exploratory data analysis of spectral data obtained via nuclear magnetic resonance (NMR), infrared (IR) or Raman spectroscopy.  Includes functions for plotting and inspecting spectra, peak alignment, hierarchical cluster analysis (HCA), principal components analysis (PCA) and model-based clustering. Robust methods appropriate for this type of high-dimensional data are available.  ChemoSpec is designed with metabolomics data sets in mind, where the samples fall into groups such as treatment and control.  Graphical output is formatted consistently for publication quality plots.  ChemoSpec is intended to be very user friendly and help you get usable results quickly.  A vignette covering typical operations is available.

Bryan Hanson

ChemoSpec

Exploratory Chemometrics for Spectroscopy

rowDist function


This function is a wrapper to compute the distance between rows of a matrix using a number of methods.  Some of these are available in package <code><a rd-options='' href='stats'>stats</a></code> and some in <code>Dist</code> in package <code>amap</code>.  All this function does is determine which method is requested and then the distance calculation is done by the appropriate method. The exception is the cosine distance which is calculated locally.


rowDist: Compute Distance Between Rows of a Matrix

Description

Usage

Arguments

Value

Details