Displaying 3 results from an estimated 3 matches for "hoerl".
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hoel
2005 Feb 16
2
R: ridge regression
hi all
a technical question for those bright statisticians.
my question involves ridge regression.
definition:
n=sample size of a data set
X is the matrix of data with , say p variables
Y is the y matrix i.e the response variable
Z(i,j) = ( X(i,j)- xbar(j) / [ (n-1)^0.5* std(x(j))]
Y_new(i)=( Y(i)- ybar(j) ) / [ (n-1)^0.5* std(Y(i))] (note that i have
scaled the Y matrix as well)
k is
2009 Aug 21
1
applying summary() to an object created with ols()
Hello R-list,
I am trying to calculate a ridge regression using first the *lm.ridge()*
function from the MASS package and then applying the obtained Hoerl
Kennard Baldwin (HKB) estimator as a penalty scalar to the *ols()*
function provided by Frank Harrell in his Design package.
It looks like this:
> rrk1<-lm.ridge(lnbcpc ~ lntex + lnbeerp + lnwinep + lntemp + pop,
subset(aa, Jahr>=1957 & Jahr<=1966))
> f <- ols(lnbcpc ~ ln...
2007 Mar 10
0
Re: 4gb seg fixup errors fc6
It is a quite "old" post but the same error at debian etch
mv /lib/tls /lib/tls.disable <--- at the vm helped to avoid those messages
mfg matthias
old mail:
Hi. I recently upgraded to fc6. I''m using the fc6 supplied xen packages.
However, now all my VM''s are logging entries like:
4gb seg fixup, process sshd (pid 1162), cs:ip 73:008d8cfc
printk: 185714 messages