[R] help me....

Stephen Sefick sas0025 at auburn.edu
Sat Dec 17 14:38:30 CET 2011

This definatley looks like homework.

On Sat 17 Dec 2011 05:36:03 AM CST, jurassic85 wrote:
> Life times of one brand of light bulb were observed. Life hours of nine light
> bulbs were 898, 720, 354, 405, 620, 54, 229, 306, 890. There were three more
> light bulbs that were still burning after 1000 hours. It is common to assume
> the life time of a light bulb follows an exponential distribution. With the
> observed data find the MLE of the parameter of the exponential distribution
> with EM algorithm.
> I dont know how I make a R-code...
> --
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> and provide commented, minimal, self-contained, reproducible code.

Stephen Sefick
Auburn University                                         
Biological Sciences                                      
331 Funchess Hall                                       
Auburn, Alabama                                        
sas0025 at auburn.edu                                  

Let's not spend our time and resources thinking about things that are 
so little or so large that all they really do for us is puff us up and 
make us feel like gods.  We are mammals, and have not exhausted the 
annoying little problems of being mammals.

                                -K. Mullis

"A big computer, a complex algorithm and a long time does not equal 

                              -Robert Gentleman

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