# fig5_6

## PURPOSE

Local Regression and Likelihood, Figure 5.6.

## SYNOPSIS

This is a script file.

## DESCRIPTION

     Local Regression and Likelihood, Figure 5.6.
     Author: Catherine Loader

     Cumulative Distribution Function

     This function uses cdfplot() from Matlab's add-on statistics toolbox.

     NEED:
       predict should backtr by default?

## CROSS-REFERENCE INFORMATION

This function calls:

- locfit Smoothing noisy data using Local Regression and Likelihood.
- predict Interpolate a fit produced by locfit().

This function is called by:

- runbook

## SOURCE CODE

    0001 % Local Regression and Likelihood, Figure 5.6.
    0002 % Author: Catherine Loader
    0003 %
    0004 % Cumulative Distribution Function
    0005 %
    0006 % This function uses cdfplot() from Matlab's add-on statistics toolbox.
    0007 %
    0008 % NEED:
    0009 %   predict should backtr by default?
    0010
    0011 load geyser;
    0012 fit = locfit(geyser,'nn',0.1,'h',1.2,'renorm',1);
    0013 x = (1:0.01:6)';
    0014 z = predict(fit,x);
    0015 figure('Name','fig5_6: Cumulative distribution function' );
    0016 plot(x,0.01*cumsum(exp(z)));
    0017 xlabel('Eruption Duration (Minutes)');
    0018 ylabel('Cumulative Distribution Function');
    0019 hold on;
    0020 cdfplot(geyser);
    0021 hold off;