Displaying 20 results from an estimated 10000 matches similar to: "How can I index multiple linear models? (Without getting a warning.)"
2011 Feb 10
1
Newb Prediction Question using stepAIC and predict(), is R wrong?
I'm using stepAIC to fit a model. Then I'm trying to use that model to
predict future happenings.
My first few variables are labeled as their column. (Is this a problem?)
The dataframe that I use to build the model is the same as the data I'm
using to predict with.
Here is a portion of what is happening..
This is the value it is predicting = > [1] 9.482975
Summary of the
2008 May 15
1
ANOVA between linear models.
Hi All,
I'm accustomed to performing an ANOVA to aid in choosing between
linear models (for example y~x or y~x+x^2), however with different
models I can't seem to do it. I'm trying to fit an exponential model
of the form ye^(bt).
Below is a code snippet that highlights what I'm trying to do
s = rnorm(100, sd = 1, mean=10)
s = s + seq(0.1,10,0.1)
x = 1:length(s)
model.lin = lm(s
2010 Jun 23
1
Estimate of variance and prediction for multiple linear regression
Hi, everyone,
Night. I have three questions about multiple linear regression in R.
Q1:
y=rnorm(10,mean=5)
x1=rnorm(10,mean=2)
x2=rnorm(10)
lin=lm(y~x1+x2)
summary(lin)
## In the summary, 'Residual standard error: 1.017 on 7 degrees of freedom',
1.017 is the estimate of the constance variance?
Q2:
beta0=lin$coefficients[1]
beta1=lin$coefficients[2]
beta2=lin$coefficients[3]
2010 Jul 21
2
Variance of the prediction in the linear regression model (Theory and programming)
Hi, folks,
Here are the codes:
##############
y=1:10
x=c(1:9,1)
lin=lm(log(y)~x) ### log(y) is following Normal distribution
x=5:14
prediction=predict(lin,newdata=x) ##prediction=predict(lin)
###############
1. The codes do not work, and give the error message: Error in
eval(predvars, data, env) :
numeric 'envir' arg not of length one. But if I use the code after the
pound sign, it
2008 Jul 29
1
combining zoo series with an overlapping index?
day<-structure(c(7.7, 7.7, 7.7, 7.7, 7.7, 7.71, 7.7, 7.71, 7.71, 7.7,
7.7, 7.7, 7.7, 7.69, 7.68, 7.68, 7.67, 7.67, 7.67, 7.66, 7.65,
7.65, 7.65, 7.64, 7.64, 7.63, 7.63, 7.63, 7.62, 7.62, 7.62, 7.62,
7.63, 7.63, 7.63, 7.63, 7.63, 7.64, 7.64, 7.65, 7.65, 7.65, 7.66,
7.66, 7.67, 7.67, 7.67, 7.68, 7.68, 7.69, 7.69, 7.69, 7.69, 7.7,
7.7, 7.7, 7.7, 7.7, 7.71, 7.7, 7.7, 7.71, 7.71, 7.7, 7.7, 7.7,
7.7,
2005 Oct 05
3
testing non-linear component in mgcv:gam
Hi,
I need further help with my GAMs. Most models I test are very
obviously non-linear. Yet, to be on the safe side, I report the
significance of the smooth (default output of mgcv's summary.gam) and
confirm it deviates significantly from linearity.
I do the latter by fitting a second model where the same predictor is
entered without the s(), and then use anova.gam to compare the
2019 Feb 08
2
Permission issue
Hi,
We did a classicupgrade of our Ubuntu Server (4.3.11, TDB), the server DC5 also host shares. Post the migration we are seeing some permission issues.
When trying to give permission to a domain group/user to folder/file we get the following
chown "LIN\\myadmin:LIN\\adgroup" adtest/
chown: invalid user: 'LIN\\myadmin:LIN\\adgroup'
wbinfo --ping-dc : checking the NETLOGON
2019 Jun 25
2
Reverse DNS
Hai,
You posted the correct things here, for a quick fix i
I'm buzzy with something else atm but i saw that /dev/urandom part.
Add in the bind9 (named) apparmor profile
# Samba DLZ
/{usr/,}lib/@{multiarch}/samba/bind9/*.so rm,
/{usr/,}lib/@{multiarch}/samba/gensec/*.so rm,
/{usr/,}lib/@{multiarch}/samba/ldb/*.so rm,
/{usr/,}lib/@{multiarch}/ldb/modules/ldb/*.so rm,
2019 Jun 19
4
Reverse DNS
Hi,
We have some issue with the reverse DNS in Samba AD. We're running Bind9_DLZ on Ubuntu 18.04. The DHCP server(Ubuntu 16.04) is different to the AD server and not in the same AD domain. The DHCP scope points to the Samba AD server as the DNS server
When a machine with DHCP assigned address tries to update the DNS record, it is able to update the forward zone but not the reverse zone. The
2018 Mar 12
2
LDAP: PDC to BDC replication issues
Hi,
We are having some replication issues between the our PDC and BDC LDAP servers. Here are the details
Servers:
Name: LIN-PDC1.LIN
Role: PDC
SLAPD: openldap-2.4.28
Samba: 3.6.25
Name: LIN-PDC2.LIN
Role: BDC
SLAPD: 2.4.31
Samba: 4.3.11
LDAP Method: cn=config with smbldap tools
Database: HDB
Management: PHPLAMDIN
Replication Method: refreshAndPersist
Replication:
After importing the LDIFs
2009 Nov 17
2
SVM Param Tuning with using SNOW package
Hello,
Is the first time I am using SNOW package and I am trying to tune the cost
parameter for a linear SVM, where the cost (variable cost1) takes 10 values
between 0.5 and 30.
I have a large dataset and a pc which is not very powerful, so I need to
tune the parameters using both CPUs of the pc.
Somehow I cannot manage to do it. It seems that both CPUs are fitting the
model for the same values
2019 Feb 08
4
Permission issue
Hi Rowland,
The user's ID range would have been below 3600, the current max rid is 3506
The links have been setup following this link, then restarted the samba-ad-dc service
https://wiki.samba.org/index.php/Libnss_winbind_Links
I followed the following to configure the winbindd stuff,
https://wiki.samba.org/index.php/Configuring_Winbindd_on_a_Samba_AD_DC
template shell = /bin/bash
2019 Apr 11
3
AD migration issues
Hi ,
We migrated to AD account in a Ubuntu 16.04 (Samba 4.3.11)and came across issues with user shares. Some of the users were able to access the shares and some were not.
The server in question has both AD and File and we followed the samba wiki to enable the Windows ACL
To migrate , we ran the following
samba-tool domain classicupgrade --dbdir=/var/lib/samba.PDC/dbdir --realm=lin.GROUP
2009 Jul 03
1
Error
Dear Sir,
I installed successfully using the install.packages("Rdonlp2", repos="
http://R-Forge.R-project.org"). I tried on the example which is defined on
the Rdonlp help file ,p <- c(-10,10)par.l <- c(0,0); par.u <-
c(100,100)lin.u <- 1; lin.l <- 1A <- t(c(1,1))fn <- function(x){
x[1]^2+x[2]^2}ret <- donlp2(p, fn, par.lower=par.l, par.upper=par.u, A=A,
2019 May 06
3
Doman join issues
Hi Rowland,
I get the same error messages even with the following smb.conf, generated by the migration process.
[global]
workgroup = LIN
realm = LIN.COM
netbios name = LINSERVER01
server role = active directory domain controller
server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbindd, ntp_signd, kcc, dnsupdate
idmap_ldb:use
2004 May 20
1
mixed models for analyzing survey data with unequal selec tion probability
Han-Lin
I don't think I have seen a reply so I will suggest that maybe you could try
a different approach than what you are thinking about doing. I believe the
current best practice is to use the weights as a covariate in a regression
model - and bytheway - the weights are the inverse of the probabilities of
selection - not the probabilities.
Fundamentally, there is a difficulty in making
2018 Apr 02
2
Samba Domain server authentication
Hi,
The setup used to work on a when both file and AD were in the same box.
We're trying to separate them.
The 'net rpc testjoin' gives: Join to "LIN" is ok.
The wbinfo -u does list all users with "LIN\username". The getent passwd
lists the LIN\username with all the attrributes". This is after putting in
your suggestions about winbind trusted domains only and
2018 Apr 02
2
Samba Domain server authentication
Hi,
We're having issues accessing shares from our Samba file server.
If we try to access the share from a domain joined Windows machine, it
prompts with enter username and password. If we supply the domain password
it fails. The error that we get is the following.
Failed to find a Unix account for peteruser 'lin\aadamson' (from session
setup) not permitted to access this share (data)
2013 Oct 23
3
adding samba to win2008Rd domain as DC
Hai.
?
Im trying to add my samba to a win 2008R2 domain.
?
Im following howto, but its not clear.?
?
what i did already.
did read ( and follow http://wiki.samba.org/index.php/Samba4/HOWTO/Join_a_domain_as_a_DC?)
1 installed samba and its packages, ( sernet samba is used )
( apt-get install sernet-samba-ad , extra are installed also )
samba -V gives :? Version 4.0.10-SerNet-Ubuntu-6.precise?
2018 Mar 24
2
Samba NT4 to AD- LDAP
Hi All,
Following the link, tried to migrate NT4 to AD using LDAP but came across some issues.
https://wiki.samba.org/index.php/Migrating_a_Samba_NT4_Domain_to_Samba_AD_(Classic_Upgrade)
I have done this step multiple times using TDB as the backend and it has always worked.
The issue I am seeing is when I run the following, we get
samba-tool domain classicupgrade