function [t,y] = ex18data

% [t,y] = ex18data.m
%
% (robust regression with one variable)
%

y=[ 5.4936896400312936e+00
   5.4274168025687288e+00
   2.5957278032779536e+00
  -2.7682391951102887e+00
   4.4450599912428901e+00
   8.8287508575062894e+00
  -2.9443247093129354e+00
  -3.5593049753212678e+00
   2.2284579997026248e+00
  -3.9802154202240274e+00
  -2.1188068795744126e+00
   4.9546317086933325e+00
  -2.3009881183399310e+00
   9.3075747131227526e+00
   7.7935911147364498e+00
   3.1937903207238514e+00
   4.3032365100048660e+00
   4.9477606964246261e+00
   5.0033964014225072e+00
   6.0324219885427803e+00
   2.4207250219709726e+00
   1.0605990066305857e+00
  -1.4556289000445948e+00
  -3.0969998656187521e+00
   2.6304308708244863e+00
   1.1358429048442082e+01
  -5.1431673358489780e+00
   2.3615669383315208e-01
   1.3588314620502040e+01
   9.4486689236513599e-02
   1.0533030943773490e+01
   3.3789693568024424e+00
  -1.8187583043782631e+00
   6.9619442099217848e+00
   1.2761815572041129e+01
  -2.4380182798326717e+00
   6.0830273125621552e+00
  -2.2168483473403287e+00
   7.3874256222451420e+00
   1.1458313858767751e+01
   2.0000000000000000e+01
  -1.5000000000000000e+01
];
t=[2.5817871571433670e-01
  -7.9032498914297911e-01
  -2.9920925260484657e+00
  -8.0990852965503386e+00
  -1.3265791215591971e+00
   4.1847039545814990e+00
  -7.6806353487449863e+00
  -8.4383063569843326e+00
  -2.6149418356897964e+00
  -9.3274324384180041e+00
  -6.1569924914077827e+00
  -5.7280309059322043e-01
  -7.1015436002526169e+00
   4.3567105542666784e+00
   3.2342855600799840e+00
  -1.3625917357218409e+00
  -1.0793022769872564e+00
   1.6663067516248198e-01
   5.6175745584152459e-01
   1.4575603285141110e+00
  -2.7835586633456675e+00
  -3.2704548506394282e+00
  -6.5346746968732559e+00
  -8.2776303488191356e+00
  -2.1332726032162421e+00
   6.0873577446152254e+00
  -9.7783862518977305e+00
  -5.3377356451646127e+00
   8.6770117183574520e+00
  -5.4640495662875708e+00
   5.7189394048037663e+00
  -1.7854234631105435e+00
  -7.6121444989052343e+00
   2.6874068997276055e+00
   7.2477637218533850e+00
  -6.8351268101647156e+00
   2.0237015616259075e+00
  -7.6478537533655082e+00
   2.5219671859042574e+00
   6.7024934928410183e+00
  -9.5000000000000000e+00
   9.0000000000000000e+00 ];