Dalgaard [mailto:[EMAIL PROTECTED]
Sent: Friday, 7 January 2005 4:46 PM
To: Mulholland, Tom
Cc: R-Help (E-mail)
Subject: Re: [R] Basic Linear Algebra
...
I can't. 4th element should be just 12.
I did indeed transcribe my solution incorrectly
...
--
O__ Peter Dalgaard
Mulholland, Tom [EMAIL PROTECTED] writes:
tdata
[,1] [,2] [,3] [,4] [,5]
[1,]010 -1 -1
[2,]200 -5 -6
[3,]003 -5 -6
[4,]1 -1 -100
sumtd
[1] 0 0 0 -2
which I can calculate to give me 3x+30, x+12, 2x+20, 12x, x
Dear Tom,
I'm not sure that I follow the question correctly, but I think that you want
to solve the over determined system tdata %*% x == sumtd.
Some time ago, I believe that I posted to the list a function for Gaussian
elimination that I use in teaching basic linear algebra. Here's an updated
