ij2k

Converts an (i, j) index to a linear index. Converts the double index of
a square matrix to the corresponding linear one. This is column-major
as it is default in R.

internal

A minimal set of routines to calculate the Grantham distance
<doi:10.1126/science.185.4154.862>. The Grantham distance attempts to
provide a proxy for the evolutionary distance between two amino acids
based on three key chemical properties: composition, polarity and
molecular volume. In turn, evolutionary distance is used as a proxy for
the impact of missense mutations. The higher the distance, the more
deleterious the substitution is expected to be.

Ramiro Magno

grantham

Calculate the Grantham Distance

Isabel Duarte

Ana-Teresa Maia

University of Algarve 

CINTESIS 

Pattern Institute 

ij2k function

<dl><dt>i</dt>
<dd>i index, i.e. row position; indexing starts at 1.</dd>
<dt>j</dt>
<dd>j index, i.e. column position; indexing starts at 1.</dd>
<dt>n</dt>
<dd>size of the square matrix.</dd></dl>

Arguments

Convert an (i, j) index to a linear index. — ij2k

<dl>

<dt>i</dt>
<dd>i index, i.e. row position; indexing starts at 1.</dd>


<dt>j</dt>
<dd>j index, i.e. column position; indexing starts at 1.</dd>


<dt>n</dt>
<dd>size of the square matrix.</dd>

</dl>

ij2k: Convert an (i, j) index to a linear index.

Description

Usage

Value

Arguments