fig7_5

PURPOSE

Local Regression and Likelihood, Figure 7.5.

SYNOPSIS

This is a script file.

DESCRIPTION

 Local Regression and Likelihood, Figure 7.5.

 Author: Catherine Loader

CROSS-REFERENCE INFORMATION

This function calls:

lfmarg computes grid margins from a locfit object, used for plotting.
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 7.5.
0002 %
0003 % Author: Catherine Loader
0004 
0005 load border;
0006 fit0 = locfit(day,runs,'cens',no,'family','geom','nn',0.7);
0007 fit1 = locfit(day,runs,'weights',ones(265,1)*0.8,'cens',no,'family','geom','nn',0.7);
0008 xev = lfmarg(fit);
0009 xev = xev{1};
0010 y0 = predict(fit0,xev);
0011 y1 = predict(fit1,xev);
0012 figure('Name','fig7_5');
0013 plot(xev,0.8*exp(y1)-exp(y0));
0014 xlabel('Date');
0015 ylabel('Runs');