Newtondf: Difference between revisions

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imported>Jeremy
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imported>Scott
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===Purpose===
===Purpose===


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===Examples===
===Examples===


===[quantile,exitflag] = newtondf(q,distfun,x,a,b);===
<pre>[quantile,exitflag] = newtondf(q,distfun,x,a,b);</pre>

Revision as of 19:22, 7 October 2008

Purpose

Newton's root finder.

Synopsis

[quantile,exitflag] = newtondf(q,distfun,x,a,b,maxits,tol)

Description

Newton's root finder for a given quantile

Inputs

  • q = matrix, the quantile point of interest
  • distfun = string, distribution function name.
  • x = matrix, original input matrix
  • a = matrix, scale parameter
  • b = matrix, shape parameter
  • maxits = scalar, maximum number of iterations
  • tol = scalar, tolerance

Outputs

  • quantile = matrix, quantile
  • exitflag = 0 if no error, 1 if maximum iterations is exceeded

Examples

[quantile,exitflag] = newtondf(q,distfun,x,a,b);