Displaying 10 results from an estimated 10 matches similar to: "confidence interval in "predict.lm""
2002 Aug 29
0
PATCH: Fix IRIX 6 testsuite failures
Having built rsync 2.5.5 on IRIX 6.2 with gcc 3.1, I ran into two failures
when running the testsuite with make check: both the chgrp and hardlinks
tests fail:
The failure in the chgrp test occurs here:
+ rsync -rtgvvv /amnt/callisto/volumes/obj-irix5/local/obj.irix5/rsync-2.5.5/testtmp.chgrp/from/ /amnt/callisto/volumes/obj-irix5/local/obj.irix5/rsync-2.5.5/testtmp.chgrp/to/
rsync: opendir
2011 Aug 01
3
formula used by R to compute the t-values in a linear regression
Hello,
I was wondering if someone knows the formula used by the function lm to compute the t-values.
I am trying to implement a linear regression myself. Assuming that I have K variables, and N observations, the formula I am using is:
For the k-th variable, t-value= b_k/sigma_k
With b_k is the coefficient for the k-th variable, and sigma_k =(t(x) x )^(-1) _kk is its standard deviation.
2002 Oct 18
7
RAM usage
Hi,
I'm having problems while working with large data sets with R 1.5.1 in
windows 2000. Given a integer matrix size of 30 columns and 15000 rows
my function should return a boolean matrix size of about 5000 rows and
15000 columns.
First of all I tried to run this function on computer with 256 MB of
RAM. I increased memory limit of R with memory.limit() up to 512 MB. I
was inspecting
2001 Nov 14
7
Multichannel files
Hi,
As I´ve understood things, the Ogg Vorbis format supports more that two
channels (stereo). Is there any tools to encode x sourcefiles into one .ogg
file?
I am a musican and am thrilled with the ide of makeing music in surround
(or in more than stereo).
This leads to my next question: is there (developing) any decoders for
multichannel oggs to, let us say, 4.1 or 5.1 surround? Wouldn´t it
2003 Dec 27
1
Faked samba packages / rootkit?
Does anybody know of these samba packages?
http://ftp.cvut.cz/samba/samba-latest.tar.gz
AFAICS they are faked and contain some kind of rootkit (you can see
this in the history below. the server this history is from is taken
offline for security reasons, and nobody is there till 7th Jan I
can't give you more details)
> 144 w
> 145 cat /etc/issue
> 146 uname -a
> 147
2004 Jul 07
3
KalmanSmooth problem
Hello,
In R I am trying to use Kalman filtering to find a solution for an hydrological problem. With Kalman Filtering I want to estimate the discharge comming from three storage bassins. I have programmed a function in R which can run KalmanSmooth. When I'm asking for the function and putting in values, R detects the following error: "Error in as.vector(data) : Argument "S1" is
2011 Oct 11
1
plots of correlation matrices
Hi,
I want to do a visualisation of a matrix plot made up of several plots of
correlation matrices (using corrplot()). My data is in csv format. Here's an
example:
id,category,attribute1,attribute2,attribute3,attribute4
661,SCHS,43.2,0,56.5,1
12202,SCHS,161.7,5.7,155,16
1182,SCHS,21.4,0,29,0
1356,SSS, 8.8182,0.1818,10.6667,0.6667
1864,SCHS,443.7273,9.9091,537,46
12360,SOA,6.6364,0,10,0
2011 Jan 04
1
t-test or ANOVA...who wins? Help please!
Dear all,
I need an help because I don´t know how to perform the analysis in the right
way, as I get different beheaviors using t-test and two ways ANOVA.
In what follow I post the table, my goal and the strange results I got.
I kindly ask you an help because I really don´t know how to solve this problem.
So the table is this:
number stimulus condition response
1
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
2007 Dec 21
1
post hoc in repeated measures of anova
Hallo, I have this dataset with repeated measures. There are two
within-subject factors, "formant" (2 levels: 1 and 2) and "f2 Ref" (25
levels: 670, 729, 788, 846, 905, 1080, 1100, 1120, 1140, 1170, 1480,
1470, 1450, 1440, 1430, 1890, 1840, 1790, 1740, 1690, 2290, 2210,
2120, 2040, 1950), and one between-subject factor, lang (2 levels:1
and 2). The response variable