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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"> I have two questions. The first one is in using the MASS library I get a warning<o:p></o:p></p>
<p class="MsoNormal">when I ask for predicted values…I’ve seen somewhere a suggestion that one should<o:p></o:p></p>
<p class="MsoNormal">use “weights = 1/hhat” …….can someone explain to me which weights I should use?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Secondly, I am teaching this in an applied statistics course…but using the library MASS.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am wondering if I should use robustbase and lmrob<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can someone give me the code using lmrob that would do the same analysis<o:p></o:p></p>
<p class="MsoNormal">as the attached file?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m hoping this is not too onerous.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cheers,<o:p></o:p></p>
<p class="MsoNormal">Brenton<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Dr Brenton R Clarke,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Senior Lecturer in Mathematics and Statistics,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">School of Engineering and Information Technology,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Murdoch University,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Murdoch, WA 6150,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Australia<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Tel +61 (0)8 93602578<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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