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<p>
Previous:&nbsp;<a rel="previous" accesskey="p" href="cpiv_005fbard.html#cpiv_005fbard">cpiv_bard</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Helper-functions.html#Helper-functions">Helper functions</a>
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<h3 class="section">5.2 Gauss-Jordan pivoting</h3>

<p><a name="index-gjp-89"></a>

<h4 class="subheading">Helptext:</h4>

<p><a name="XREFgjp"></a>
<pre class="verbatim">m = gjp (m, k[, l])

m: matrix; k, l: row- and column-index of pivot, l defaults to k.

Gauss-Jordon pivot as defined in Bard, Y.: Nonlinear Parameter
Estimation, p. 296, Academic Press, New York and London 1974. In
the pivot column, this seems not quite the same as the usual
Gauss-Jordan(-Clasen) pivot. Bard gives Beaton, A. E., 'The use of
special matrix operators in statistical calculus' Research Bulletin
RB-64-51 (1964), Educational Testing Service, Princeton, New Jersey
as a reference, but this article is not easily accessible. Another
reference, whose definition of gjp differs from Bards by some
signs, is Clarke, R. B., 'Algorithm AS 178: The Gauss-Jordan sweep
operator with detection of collinearity', Journal of the Royal
Statistical Society, Series C (Applied Statistics) (1982), 31(2),
166--168.

</pre>

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