tril

Diagonal above which to zero elements. <code>k = 0</code> (the default) is 
the main diagonal, k < 0 is below it and k > 0 is above.

Logical indicating whether to include the diagonal. Default is 
<code>TRUE</code>.

diag

Extract the lower triangular part of a matrix.

Additional matrix functionality for R including: (1) wrappers for
the base matrix function that allow matrices to be created from character
strings and lists (the former is especially useful for creating block
matrices), (2) better printing of large matrices via the generic "pretty"
print function, and (3) a number of convenience functions for users more
familiar with other scientific languages like 'Julia', 'Matlab'/'Octave', or
'Python'+'NumPy'.

Brandon Greenwell

ramify

Additional Matrix Functionality

tril function

<dl><dt>x</dt>
<dd>A matrix.</dd>
<dt>k</dt>
<dd>Diagonal above which to zero elements. <code>k = 0</code> (the default) is 
the main diagonal, k &lt; 0 is below it and k &gt; 0 is above.</dd>
<dt>diag</dt>
<dd>Logical indicating whether to include the diagonal. Default is 
<code>TRUE</code>.</dd></dl>

Arguments

Extract Lower Triangular Matrix — tril

<dl>

<dt>x</dt>
<dd>A matrix.</dd>


<dt>k</dt>
<dd>Diagonal above which to zero elements. <code>k = 0</code> (the default) is 
the main diagonal, k &lt; 0 is below it and k &gt; 0 is above.</dd>


<dt>diag</dt>
<dd>Logical indicating whether to include the diagonal. Default is 
<code>TRUE</code>.</dd>

</dl>

tril: Extract Lower Triangular Matrix

Description

Usage

Arguments

Examples