Construct a matrix with ones at and below the given diagonal and zeros
elsewhere.

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

tri function

<dl><dt>nrow</dt>
<dd>The desired number of rows.</dd>
<dt>ncol</dt>
<dd>The desired number of columns.</dd>
<dt>k</dt>
<dd>The sub-diagonal at and below which the matrix is filled.
<code>k = 0</code> is the main diagonal, while <code>k</code> &lt; 0 is below it, and <code>k</code> &gt; 0 is
above. The default is 0.</dd>
<dt>diag</dt>
<dd>Logical indicating whether to include the diagonal. Default is
<code>TRUE</code>.</dd></dl>

Arguments

Lower/Upper Triangular Matrix — tri

<dl>

<dt>nrow</dt>
<dd>The desired number of rows.</dd>


<dt>ncol</dt>
<dd>The desired number of columns.</dd>


<dt>k</dt>
<dd>The sub-diagonal at and below which the matrix is filled.
<code>k = 0</code> is the main diagonal, while <code>k</code> &lt; 0 is below it, and <code>k</code> &gt; 0 is
above. The default is 0.</dd>


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

</dl>

tri: Lower/Upper Triangular Matrix

Description

Usage

Arguments

Examples