Displaying 20 results from an estimated 1100 matches similar to: "[Bug 100758] New: Kernel Oops when starting X nv50_dma_push"
2012 Jun 07
7
[Bug 50830] New: GeForce 8500 GT Connectors Reversed
https://bugs.freedesktop.org/show_bug.cgi?id=50830
Bug #: 50830
Summary: GeForce 8500 GT Connectors Reversed
Classification: Unclassified
Product: xorg
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component:
2006 Mar 13
4
Trouble Using AR Object based on a Piggyback Query?
Hi,
I''m new to Rails and Ruby and can''t access methods/columns from an
ActiveRecord object that is a "piggy-back" row as described by David
here: http://www.loudthinking.com/arc/000235.html
Via Console I can create the piggyback object but reading attributes
gives "TypeError: cannot convert String into Integer" (this is in
Console and the browser).
2014 Dec 09
0
[Bug 31780] DRM/Nouveau Blank Screen with 8500 GT
https://bugs.freedesktop.org/show_bug.cgi?id=31780
Kevin Winchester <kjwinchester at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |FIXED
--- Comment #13 from Kevin Winchester
2006 Jan 05
2
POP3 only - why is cur/ growing?
Hi,
I use Sarge's dovecot for a pop3 mail collection server. IMAP is not
used at all. It works well, but I would like to know why one of the
accounts also keeps a copy of all e-mail copies in the cur/ folder?
Thanks a lot,
Wally
--
Wally Winchester
wally_winchester at fastmail.fm
--
http://www.fastmail.fm - The way an email service should be
2011 Dec 01
1
Hlink node data for 570645 already has path ...
When syncing one backup system (running dirvish, but that's not really
relevant) to a second long-term backup system which uses btrfs
snapshots, I get the following output:
rsync: link "/parasite.oob.telegraaf.net/vservers-var-www/tree/elo/var/www/lokaalx/openx-htdocs/etc/xmlcache/.svn/prop-base/cache_etc-changes_schema-tables-core-12934.bin.svn-base" (in backup-aquagirl) =>
2010 Dec 21
1
randomForest: tuneRF error
Just curious if anyone else has got this error before, and if so,
would know what I could do (if anything) to get past it:
> mtry <- tuneRF(training, trainingdata$class, ntreeTry = 500, stepFactor = 2, improve = 0.05, trace = TRUE, plot = TRUE, doBest = FALSE)
mtry = 13 OOB error = 0.62%
Searching left ...
mtry = 7 OOB error = 1.38%
-1.222222 0.05
Searching right ...
mtry = 26
2009 Apr 20
1
Random Forests: Predictor importance for Regression Trees
Hello!
I think I am relatively clear on how predictor importance (the first
one) is calculated by Random Forests for a Classification tree:
Importance of predictor P1 when the response variable is categorical:
1. For out-of-bag (oob) cases, randomly permute their values on
predictor P1 and then put them down the tree
2. For a given tree, subtract the number of votes for the correct
class in the
2012 Apr 13
1
caret package: custom summary function in trainControl doesn't work with oob?
Hi all,
I've been using a custom summary function to optimise regression model
methods using the caret package. This has worked smoothly. I've been using
the default bootstrapping resampling method. For bagging models
(specifically randomForest in this case) caret can, in theory, uses the
out-of-bag (oob) error estimate from the model instead of resampling, which
(in theory) is largely
2006 Jul 16
6
Pin in the Map - "tinyurl for maps" rails app
Hi there,
A little while ago we launched Pin in the Map (http://pininthemap.com),
a rails application which allows you to easily mark a spot on a map,
attach some text to it, and get a simple link to pass around. It''s
basically tinyurl for maps.
It''s proved useful for organising after-work drinks, meetings, weddings
plus a whole variety of other things.
http://pininthemap.com.
2008 May 05
1
Problems using rfImpute
Hello R-user!
I am running R 2.7.0 on a Power Book (Tiger). (I am still R and
statistics beginner)
I tried rfImpute (randomForest) and as far as I understood should it
replace NA`s using a proximity matrix:
> set.seed(100000)
> Subset5Imputed<-rfImpute(Sex~., data=Subset5)
ntree OOB 1 2
300: 11.78% 12.36% 11.21%
ntree OOB 1 2
300: 12.07% 12.64%
2009 Apr 10
1
Random Forests: Question about R^2
Dear Random Forests gurus,
I have a question about R^2 provided by randomForest (for regression).
I don't succeed in finding this information.
In the help file for randomForest under "Value" it says:
rsq: (regression only) - "pseudo R-squared'': 1 - mse / Var(y).
Could someone please explain in somewhat more detail how exactly R^2
is calculated?
Is "mse"
2005 Sep 08
2
Re-evaluating the tree in the random forest
Dear mailinglist members,
I was wondering if there was a way to re-evaluate the
instances of a tree (in the forest) again after I have
manually changed a splitpoint (or split variable) of a
decision node. Here's an illustration:
library("randomForest")
forest.rf <- randomForest(formula = Species ~ ., data
= iris, do.trace = TRUE, ntree = 3, mtry = 2,
norm.votes = FALSE)
# I am
2017 Sep 19
2
nVidia GT218M [GeForce 315M] issues on kUbuntu 17.04 x86-64.
What seems to be the problem? I think you forgot to include a description
of the issues you're seeing.
On Sep 18, 2017 11:23 PM, <ygrishin-lists at mail2.ca> wrote:
Hello looks like the device is not supported, the logs are as follows:
---
# dmesg | grep nouve
[ 2.789899] fb: switching to nouveaufb from VESA VGA
[ 2.790060] nouveau 0000:01:00.0: NVIDIA GT218 (0a8d00b1)
[
2011 Nov 26
3
Question about randomForest
I've been using the R package randomForest but there is an aspect I
cannot work out the meaning of. After calling the randomForest
function, the returned object contains an element called prediction,
which is the prediction obtained using all the trees (at least that's
my understanding). I've checked that this prediction set has the error
rate as reported by err.rate.
However, if I
2010 Jul 20
1
Random Forest - Strata
Hi all,
Had struggled in getting "Strata" in randomForest to work on this.
Can I get randomForest for each of its TREE, to get ALL sample from some
strata to build tree, while leaving some strata TOTALLY untouched as oob?
e.g. in below, how I can tell RF to,
- for tree 1 in the forest, to use only Site A and B to build the tree,
while using the WHOLE Site C data for the oob error
2017 Sep 19
2
nVidia GT218M [GeForce 315M] issues on kUbuntu 17.04 x86-64.
Generically, yes, the hardware is supported.
On Mon, Sep 18, 2017 at 11:42 PM, <ygrishin-lists at mail2.ca> wrote:
> I will update the thread as soon as I get the hardware back. It was
> something serious like artifacts or no video in X so that I had to resort to
> proprietary drivers.
> So the question is whether this hardware is supported or not.
>
>
> On 2017-09-18
2007 Apr 29
1
randomForest gives different results for formula call v. x, y methods. Why?
Just out of curiosity, I took the default "iris" example in the RF
helpfile...
but seeing the admonition against using the formula interface for large data
sets, I wanted to play around a bit to see how the various options affected
the output. Found something interesting I couldn't find documentation for...
Just like the example...
> set.seed(12) # to be sure I have
2010 Jan 11
1
Help me! using random Forest package, how to calculate Error Rates in the training set ?
now I am learining random forest and using random forest package, I can get
the OOB error rates, and test set rate, now I want to get the training set
error rate, how can I do?
pgp.rf<-randomForest(x.tr,y.tr,x.ts,y.ts,ntree=1e3,keep.forest=FALSE,do.trace=1e2)
using the code can get oob and test set error rate, if I replace x.ts and
y.ts with x.tr and y.tr,respectively, is the error rate
2018 May 31
2
predicciones sobre el OOB de randomForest
Gracias Carlos. No uso caret, pero lo miraré.
Quoting Carlos Ortega <cof en qualityexcellence.es>:
> Hola,
>
> Creo que si utilizas "caret" y en la función "trainControl()" defines "oob"
> como criterio de randomización, puedes luego recuperar del objeto del
> modelo, las predicciones individuales...
>
> Saludos,
> Carlos Ortega
>
2004 Oct 13
1
random forest -optimising mtry
Dear R-helpers,
I'm working on mass spectra in randomForest/R, and following the
recommendations for the case of noisy variables, I don't want to use the
default mtry (sqrt of nvariables), but I'm not sure up to which
proportion mtry/nvariables it makes sense to increase mtry without
"overtuning" RF.
Let me tell my example: I have 106 spectra belonging to 4 classes, the