Displaying 20 results from an estimated 353 matches for "epsilon".
2008 Nov 29
0
nmbd log error - register_name_response rejected?
...ed.
Copyright Andrew Tridgell and the Samba Team 1992-2008
[2008/11/28 20:28:24, 0] nmbd/asyncdns.c:start_async_dns(151)
started asyncdns process 2531
[2008/11/28 20:28:24, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup EPSILON on subnet
xxx.xxx.xxx.xxx
[2008/11/28 20:28:24, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
add_domain_logon_names:
Attempting to become logon server for workgroup EPSILON on subnet
UNICAST_SUBNET
[2008/11/28 20:28:24, 0]
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(335)
bec...
2005 Apr 18
2
Construction of a large sparse matrix
...te the
covariance matrix below. The code above is designed to create the
portion of the matrix \sigma^2_{vle}\bm{J} .
\begin{equation}
\label{vert:cov}
\bm{\Phi} = var
\left [
\begin{array}{c}
Y^*_{1}\\
Y^*_{2}\\
Y^*_{3}\\
Y^*_{4}\\
\end{array}
\right ]
=
\left [
\begin{array}{cccc}
\sigma^2_{\epsilon}\bm{I}& \sigma^2_{\epsilon}\rho\bm{I} & \bm{0} &
\bm{0}\\
\sigma^2_{\epsilon}\rho\bm{I} &
\sigma^2_{\epsilon}\bm{I}+\sigma^2_{vle}\bm{J} &
\sigma^2_{\epsilon}\rho^2\bm{I} & \bm{0}\\
\bm{0} & \sigma^2_{\epsilon}\rho^2\bm{I} &
\sigma^2_{\epsilon}\bm{I}+\sigma^2_{vle}\b...
2003 Dec 10
3
e1071:svm - default epsilon = 0.1 (NOT 0.5) (PR#5671)
In e1071 package/svm default epsilon value is set to 0.1 and not 0.5
as documentation says.
R
2009 Jul 16
1
Error with r2winbugs
Hi,
I am trying to do run the following model saved in "C:/bugs/sus.bug"
model {
for (i in 1:n){
y[i] ~ dpois(lamdba[i])
log(lambda[i]) <- mu+bmale[male[i]]+bschn[schn[i]]+epsilon[i] #
epsilon[i] ~ dnorm(0,tau.epsilon)
}
mu ~ dnorm(0,.0001)
bmale ~ dnorm(0,.0001)
tau.epsilon <- pow(sigma.epsilon, -2)
sigma.epsilon ~ dunif(0,100)
for (j in 1:n.schn){
bschn[j] ~ dnorm(0,tau.schn)
}
tau.schn <- pow(sigma.schn, -2)
sigma.schn ~ dunif(0,...
2004 Dec 01
1
tuning SVM's
...ining, kernel =
"polynomial")
> summary(obj)
Call:
best.tune(svm, similarity ~ ., data = training, kernel = "polynomial")
Parameters:
SVM-Type: eps-regression
SVM-Kernel: polynomial
cost: 1
degree: 3
gamma: 0.04545455
coef.0: 0
epsilon: 0.1
Number of Support Vectors: 754
> svm.model <- svm(similarity ~., data = training, kernel =
"polynomial", cost = 1, degree = 3, gamma = 0.04545455, coef.0 = 0,
epsilon = 0.1)
> pred=predict(svm.model, testing)
> pred[pred > .5] = 1
> pred[pred <= .5] = 0...
2005 May 11
1
2 factor ANOVA and sphericity
With respect to calculating the epsilon index of sphericity for ANOVA,
discussed on pp. 45-47 of:
http://www.psych.upenn.edu/~baron/rpsych.pdf
It notes that epsilon is not required for a repeated measures design with
only k=2 levels, as the minimum value of epsilon (e) is given by:
e = 1/(k-1)
so for k=2, we have e = 1 (ie, no corr...
2012 Dec 22
1
creating a function
Dear R users,
I’d like to create a function as:
Y.t+1 = Y.t + (1\p)*summation(x(Y.t,Y.t-1,...)) + epsilon.t
where x is a function of Y.t, Y.t-1 and so on, epsilon is a random error and p is a parameter.
Do you think something of the following form might be appropriate?
Y<-function(Y,p,x,epsilon){
for (i in 2:length(Y)) {
Y[i]<-Y[i-1]+(1/p)*sum(x(...
2008 Dec 04
1
How to get Greenhouse-Geisser epsilons from anova?
...an additional fourth between subjects factor D.
Everything works fine using
aov(val ~ A*B*C + Error(subject/ (A*B*C) ) ) or
aov(val ~ (D*A*B*C) + Error(subject/(A*B*C)) + D )
val, A, B, C, D and subject are columns in a data.frame.
How can I get the estimated Greenhouse-Geisser and Huynh-Feldt epsilons?
I know Peter Dalgaard described it in R-News Vol. 7/2, October 2007.
However, unfortunately I am not able to apply that using my data...
Furthermore, I am still confused of how SPSS calculates the epsilons
since it is mentioned that perhaps there are any errors in SPSS??
I would be glad if an...
2019 Mar 03
2
bug: sample( x, size, replace = TRUE, prob= skewed.probs) produces uniform sample
When `length( skewed.probs ) > 200' uniform samples are generated in R-devel.
R-3.5.1 behaves as expected.
`epsilon` can be a lot bigger than illustrated and still the uniform distribution is produced.
Chuck
> set.seed(123)
>
> epsilon <- 1e-10
>
> ## uniform to 200 then small
> p200 <- prop.table( rep( c(1, epsilon), c(200, 999-200)))
> ## uniform to 201 then small
> p201 <...
2007 Jun 24
2
ANOVA non-sphericity test and corrections (eg, Greenhouse-Geisser)
...x0 <- rnorm(30)
x2 <- rnorm(30)
x4 <- rnorm(30)
data <- cbind(x0,x2,x4)
# n is the number of 'subjects' or rows; while
# k is the number of levels in the factor (columns),
# which is the number of repeated measures
n <- dim(data)[1]
k <- dim(data)[2]
# if k <= 2, the epsilon correction is not required.
# When the data are perfectly spherical, epsilon = 1.
# The minimum value possible for epsilon is
epsi = 1 / (k - 1)
# if epsi == 1 and k == 2, quit now...
# ---
# calculate variance-covariance matrix
# diagonal entries are variance,
# off-diagonal are covariance
S &l...
2014 Jan 24
1
Installation of R-3.0.2 failed Fortran error
...ors and so the installation isn't
successful
This is a part from the make run output.:
gcc-3.3 -fpic -L/usr/lib64/gcc-lib/x86_64-suse-linux/3.3.3-hammer/ -lg2c
-ffloat-store -c dlamch.f -o dlamch.o
dlamch.f: In function `dlamch':
dlamch.f:89: warning:
INTRINSIC DIGITS, EPSILON, HUGE, MAXEXPONENT,
Reference to unimplemented intrinsic `DIGITS' at (^) (assumed EXTERNAL)
dlamch.f:89:
INTRINSIC DIGITS, EPSILON, HUGE, MAXEXPONENT,
^
Invalid declaration of or reference to symbol `digits' at (^) [initially
seen at (^)]
dlamc...
2007 Oct 17
1
correlated data
.... Secondly, when I put the code given below all in one file and source it, it is unable to complete the task. But when I execute it one at a time it is able to complete it. Can someone point out any mistake that I may be making?
Thanks ../Murli
library(ecodist)
x<-1:100
y<-corgen(x=x, r=.8, epsilon=0.01, population=FALSE)$y
colnames(data)<-c("x", "y")
write.csv(data, file="artDataCorrPt8.csv")
rm(data)
y<-corgen(x=x, r=.3, epsilon=0.01, population=FALSE)$y
colnames(data)<-c("x", "y")
write.csv(data, file="artDataCorrPt3.csv"...
2013 Mar 31
1
Creating new instances from original ones
...t
enough to obtain a good accuracy using some classifiers( svm, rna, knn) I
need to "oversampling" the number of instances of each class.
I have heard that there is a method to do this. It consists in generating
these new instances as follows:
new_instance <---- original_instance + u(epsilon)
U(epsilon) is a uniform number in the range [-epsilon,epsilon] and this
number is applied to each feature of the dataset to obtain a new instance
without modified the original class.
Anybody has used this method to "oversampling" his data? Anybody has more
information about it?
Thank...
2019 Oct 26
2
ls permissions format changed in CentOS 8
It's not a ls bug. I've stepped through the code with gdb and it looks just
fine. At this point I think Epsilon (a 32-bit app) is corrupting the image
of its child process in a strange way. I'm working with the author at
Lugaru (who's very responsive) to track it down. He couldn't reproduce it
right away. I just reproduced it on a virgin CentOS 8 image at Linode with
utterly no modifications....
2007 May 08
2
statistics/correlation question NOT R question
This is not an R question but if anyone can help me, it's much
appreciated.
Suppose I have a series ( stationary ) y_t and a series x_t ( stationary
)and x_t has variance sigma^2_x and epsilon is normal
(0, sigma^2_epsilon )
and the two series have the relation
y_t = Beta*x_t + epsilon
My question is if there are particular values that sigma^2_x and
sigma^2_epsilon have to take in order for corr(x_t,y_t) to equal Beta ?
I attempted to figure this out using two different methods...
2007 Oct 31
3
How to make "Add permission" for folder in system withntacl support?
Hi!
Let's go back to this topic please! I have to replace the Windows NT 4.0
server with Samba but I still don't know how to do this. I need to allow to
someone (some user group) the right to add files into the folder. They use
this "feature" on current NT server ver often and to this in the following
ways:
1. Rightclick on file you want to add, Copy, then go to server, for
2009 Apr 07
1
Simulate binary data for a logistic regression Monte Carlo
...eventually be able to manipulate the structure of the
error term to give groups of observations a random effect. Right now I am
just doing a very basic set up to make sure I can recover the parameters
properly. I am running into trouble with the code below. It works if you
take out the object 'epsilon,' but I need that object because it is where I
plan to add in the random effects eventually. Any suggestions? Thanks.
set.seed(1)
alpha <- numeric(100) # Vector to store coefficient estimates
X1 <- numeric(100)
X2 <- numeric(100)
a <- 0 # True parameters
B1 <- .5
B2 <- .85...
2006 Jan 15
1
problems with glm
...To be more specific, here is an example:
> success <- c(13,12,11,14,14,11,13,11,12)
> failure <- c(0,0,0,0,0,0,0,2,2)
> predictor <- c(0,80*5^(0:7))
> glm(cbind(success,failure) ~ predictor + 0,
+ family=binomial(link="log"),
+ control=glm.control(epsilon=1e-8,trace=TRUE,maxit=50))
Deviance = 3.348039 Iterations - 1
Error: subscript out of bounds
In addition: Warning message:
step size truncated: out of bounds
>
The model with intercept yields:
> glm(cbind(success,failure) ~ predictor ,
+ family=binomial(link="log"),
+...
2010 Sep 24
0
kernlab:ksvm:eps-svr: bug?
...else
843 scal <- 1
844 error(ret) <- drop((scal^2)*crossprod(fitted(ret) - y)/m)
845 }
846 }
C. Finally, an example (taken from ?ksvm):
require (kernlab)
seed (1234)
x <- seq(-20,20,0.1); x <- x[x != 0]
y <- sin(x)/x + rnorm(400,sd=0.03)
regm <- ksvm(x,y,epsilon=0.01,kpar=list(sigma=16),cross=3)
te <- crossprod (fitted(regm)-y)/400
s <- (scaling(regm)$y.scale[["scaled:scale"]])^2
error (regm) # 0.03891344
te # 0.0008958718
te * s # 6.37252e-05
te / s # 0.01259449
These numbers can also be seen in the trace_output...
2010 Nov 18
0
On efficiency, Vectorize and loops
...de used for estimation is 'code1'
rm(list=ls(all=TRUE))
n<-100 # Number of observations
d<-4 # Dimension of X
a<-0 # Lower bound
b<-1 # Upper bound
p<-5 # [See Bathia, Yao, Ziegelmann p. 5)
#######################################
# Building the error function 'epsilon'
#######################################
# Building the vector process 'Z' (which is a iiN(0,I_d) vector process)
# Time varies columnwise
Z<-matrix(rnorm(10*n),nrow=10,ncol=n)
# Defining the deterministic base functions 'zeta'
zeta<-function(u,i){
sqrt(2)+sin(pi*i*u)...