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gibson:teaching:spring-2016:math445:lab6

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gibson:teaching:spring-2016:math445:lab6 [2016/02/24 20:44]
gibson
gibson:teaching:spring-2016:math445:lab6 [2018/03/06 06:58] (current)
gibson
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 Compute the Google Page Rank for a network of 100 pages within ''​www.unh.edu''​. ​ Compute the Google Page Rank for a network of 100 pages within ''​www.unh.edu''​. ​
  
-**(a)**  ​Go to the website ​[[http://​www.mathworks.com/​moler/​chapters.html|Numerical Computing with Matlab]] by Clive Moler and download the “surfer.m” program. Set ''​M=100''​ and run the command ​ +**(a)**  ​Download ​the [[https://​www.mathworks.com/​matlabcentral/​mlc-downloads/​downloads/​submissions/​37976/​versions/​7/​previews/​surfer.m/​index.html?​access_key=|surfer.m]] Matlab script from [[http://​www.mathworks.com/​moler/​chapters.html|Numerical Computing with Matlab]] by Clive Moler. Set ''​M=100''​ and run the command ''​[w,​L] = surfer('​http://​www.unh.edu',​M);''​. This might take a few minutes. ​
-''​[w,​L] = surfer('​http://​www.unh.edu',​M);''​. This might take a few minutes. ​+
  
 **(b)** ​ After some time this will generate a vector $w$ of websites and a matrix $L$ of links between them. All the entries of $L$ should be either 0 or 1. But $L$ will have 100^2 == 10,000 entries, so you can't check this by eye. Write a short piece of Matlab code that double-checks that all entries of $L$ are either 0 or 1.  **(b)** ​ After some time this will generate a vector $w$ of websites and a matrix $L$ of links between them. All the entries of $L$ should be either 0 or 1. But $L$ will have 100^2 == 10,000 entries, so you can't check this by eye. Write a short piece of Matlab code that double-checks that all entries of $L$ are either 0 or 1. 
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 <​code>​ <​code>​
 N=40; N=40;
-for m=1:N;+for n=1:N;
   p=B*p;   p=B*p;
 end end
gibson/teaching/spring-2016/math445/lab6.1456375453.txt.gz · Last modified: 2016/02/24 20:44 by gibson