Comments for Data-driven modeling http://jakehofman.com/ddm Fall 2009, Department of Applied Mathematics, Columbia University Sat, 19 Sep 2009 13:46:46 -0400 http://wordpress.org/?v=2.8.4 hourly 1 Comment on Homework 01 by Jake http://jakehofman.com/ddm/2009/09/homework-01/comment-page-1/#comment-4 Jake Sat, 19 Sep 2009 13:46:46 +0000 http://jakehofman.com/ddm/?p=43#comment-4 Please write your own code to solve least-squares regression. (This should be relatively simple with the <code>solve()</code> function and <code>%*%</code> operator in R.) Let me know if you have further questions. Please write your own code to solve least-squares regression. (This should be relatively simple with the solve() function and %*% operator in R.) Let me know if you have further questions.

]]> Comment on Homework 01 by Meghan http://jakehofman.com/ddm/2009/09/homework-01/comment-page-1/#comment-3 Meghan Sat, 19 Sep 2009 00:15:37 +0000 http://jakehofman.com/ddm/?p=43#comment-3 Is writing our own code for linear regression using matrix operations an essential part of HW1 or can we use pre-coded linear regression functions, such as lm() in R? Is writing our own code for linear regression using matrix operations an essential part of HW1 or can we use pre-coded linear regression functions, such as lm() in R?

]]> Comment on Lecture 01 by El-ad David Amir http://jakehofman.com/ddm/2009/09/lecture-01/comment-page-1/#comment-2 El-ad David Amir Tue, 15 Sep 2009 14:19:56 +0000 http://jakehofman.com/datadriven/?p=1#comment-2 For those of us who do not want to install cygwin, Windows versions of many tools with GNU license can be downloaded here: http://gnuwin32.sourceforge.net/ For those of us who do not want to install cygwin, Windows versions of many tools with GNU license can be downloaded here:

http://gnuwin32.sourceforge.net/

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