Displaying 15 results from an estimated 15 matches similar to: "lm ~ v1 + log(v1) + ... improve adj Rsq ¿any sense?"
2006 Jan 16
1
rsq.rpart not found ...
Hi to all
I tried help.search("rsq") and found
Help files with alias or concept or title matching 'rsq.rpart' using
regular expression matching:
rsq.rpart(rpart) Plots the Approximate R-Square for the
Different Splits
then I tried to use the function but I got the error object not found
must I load any package before? there is nothing in the
2015 Feb 23
0
[PATCH 2/2] nvc0/ir: improve precision of double RCP/RSQ results
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
Not sure how many steps are needed for the necessary accuracy. Just
doing 2 because that seems like a reasonable number.
.../nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 42 ++++++++++++++++++++--
1 file changed, 39 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
2015 Feb 23
0
[Mesa-dev] [PATCH 2/2] nvc0/ir: improve precision of double RCP/RSQ results
Oh right. I think the NVIDIA blob executes those steps conditionally
based on the upper bits not being 0x7ff (== infinity/nan). I should do
the same thing here. [FWIW I was able to test the nv50 code last night
and that one's a total fail for rcp/rsq... will need to port that over
to my nvc0 and debug there.]
On Mon, Feb 23, 2015 at 8:24 AM, Roland Scheidegger <sroland at vmware.com>
2015 Feb 23
2
[Mesa-dev] [PATCH 2/2] nvc0/ir: improve precision of double RCP/RSQ results
Does this give correct results for special floats (0, infs)?
We tried to improve (for single floats) x86 rcp in llvmpipe with
newton-raphson, but unfortunately not being able to give correct results
for these two cases (without even more additional code) meant it got all
disabled in the end (you can still see that code in the driver) since
the problems are at least as bad as those due to bad
2006 Jun 13
2
Garch Warning
Dear all R-users,
I wanted to fit a Garch(1,1) model to a dataset by:
>garch1 = garch(na.omit(dat))
But I got a warning message while executing, which is:
>Warning message:
>NaNs produced in: sqrt(pred$e)
The garch parameters that I got are:
> garch1
Call:
garch(x = na.omit(dat))
Coefficient(s):
a0 a1 b1
1.212e-04 1.001e+00 1.111e-14
Can any one
2006 Apr 23
1
Question about bicreg
Dear Adrian and Ian (and r-helpers),
I encountered a curious result in developing an example using the bicreg
function in the BMA package: I noticed that pairs of models with equal R^2
and equal numbers of predictors had nevertheless different BIC values.
Looking at the bicreg function, the definition of BIC appears to be the
usual one, or close to it [bic <- n * log(1 - r2/100) + (size - 1) *
2009 Jan 26
1
glm StepAIC with all interactions and update to remove a term vs. glm specifying all but a few terms and stepAIC
Problem:
I am sorting through model selection process for first time and want to make
sure that I have used glm, stepAIC, and update correctly. Something is
strange because I get a different result between:
1) a glm of 12 predictor variables followed by a stepAIC where all
interactions are considered and then an update to remove one specific
interaction.
vs.
2) entering all the terms
2007 Jul 14
0
ts model challenge (transfer function)
Dear useRs,
I am trying to model a time series with a transfer function. I think
it can be put into the ARMA framework, and estimated with the 'arima'
function (and others have made similar comments on this list). I have
tried to do that, but the results have so far been disappointing.
Maybe I am trying to make 'arima' do something it can't...
The data are time series of
2008 May 04
1
Is my understanding of rlnorm correct?
rlnorm takes two 'shaping' parameters: meanlog and sdlog.
meanlog would appear from the documentation to be the log of the mean.
eg if the desired mean is 1 then meanlog=0.
So to generate random values that fit a lognormal distribution I would
do this:
rlnorm(N , meanlog = log(mean) , sdlog = log(sd))
But when I check the mean I don't get it when sdlog>0. Interestingly I
2007 Oct 31
0
quantreg log and polinomial functions
I have two variables which show a typical quantile relation
I would like to fit quantile regression models based on both logarithm and
polynomial of second order functions within quantreg.
Any help appreciated...
Cheers
Duccio
Herewith the values:
------
var1 var2
0.96429 0.00138
1 0.02316
1.03145 0.09323
1.24088 0.77128
1.39869 0.86732
1.33728 0.63674
1.48299 0.96194
2012 Aug 22
1
Error in if (n > 0)
I've searched the Web with Google and do not find what might cause this
particular error from an invocation of cenboxplot:
cenboxplot(cu.t$quant, cu.t$ceneq1, cu.t$era, range=1.5, main='Total
Recoverable Copper', ylab='Concentration (mg/L)', xlab='Time Period')
Error in if (n > 0) (1L:n - a)/(n + 1 - 2 * a) else numeric() :
argument is of length zero
I do
2006 Jun 12
0
ICLID or CNAM calling name and number through a cisco isdn gateway
All,
I need to run this by everyone and see if someone has any idea's. I have a asterisk server setup and currently am receiving the inbound calling number where the name should be. My setup is....
One pri terminating into a Cisco 2431 router
Sip messages from the Cisco get sent to a asterisk server
linksys ata's a each remote end.
I can receive the calling name if the call originates
2002 Apr 11
14
Ordinal categorical data with GLM
Hello All:
I am trying to replicate the results of an example found in Alan
Agresti's "Categorical Data Analysis" on pages 267-269. The example is
one of a 2 x 2 cross-classification table of ordinal counts: job
satisfaction and income.
I am able to get Agresti's results for the independence model (G^2 =
12.03 with df = 9) assuming as he does that the data is nominal, but
2013 Apr 22
7
Multiple lon lat points in the map with ggplot2
Hello R users,
For the last few days I am struggling with the following task:
my data.frame:
A1 A2 A3 B1 B2
B3
58.81 53.292 54.501 13.013 17.39 19.407 56.02 56.251 54.033 20.099 13.15
10.411 55.376 53.099 57.625 13.396 21.031 13.22 58.584 53.194 54.218
13.038 16.854 19.289 55.7 55.921 53.847 19.942 13.153 9.828 55.093 52.934
2020 Jan 12
2
Display broken after resume from suspend
Howdy! I've been doing a lot of troubleshooting, and haven't arrived at a
solution yet.
Kernel log attached. VBIOS also attached.
Ubuntu 19.10
$ uname -a
Linux joyful 5.3.0-26-generic #28-Ubuntu SMP Wed Dec 18 05:37:46 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
$ dpkg -l|grep nouveau
ii libdrm-nouveau2:amd64 2.4.99-1ubuntu1
amd64