Displaying 20 results from an estimated 10000 matches similar to: "swapping database mid replication"
2011 Jan 20
1
replicating a compacted database
Suppose that I'm indexing on a database foo, and I'm replicating it to
another database bar using xapian-replicate. If I compact foo and
produce foo2, can I safely use xapian-replicate on foo2 to bar? The
version in question is 1.2.4.
Thanks,
Wes
--
http://www.s7labs.com
2007 May 03
4
Survival statistics--displaying multiple plots
Hello all!
I am once again analyzing patient survival data with chronic liver disease.
The severity of the liver disease is given by a number which is continuously
variable. I have referred to this number as "meld"--model for end stage
liver disease--which is the result of a mathematical calculation on
underlying laboratory values. So, for example, I can generate a Kaplan-Meier
plot
2012 Jan 20
0
Python Xapian tutorial
I've written a little Xapian tutorial using Python that indexes tweets.
It's hopefully useful to anybody trying to figure out how it all works
in Python (actually, how it all works in general). Please let me know if
I've made any mistakes, and comments are always welcome.
http://www.s7labs.com/learn/xaptut/
Wes
--
http://www.s7labs.com
2013 Jun 04
3
ssh -Y X-forwarding?
On rare occasions I want to run a remote X command (like 'meld' to
interactively merge changes in files) and normally 'ssh -Y
remote_host' from a terminal in an NX/freenx window that is acting as
my desktop to start and any X program subsequently started would open
in a new window via X-forwarding - at least when the target is a 5.x
host. I don't do it often enough to remember
2011 Jan 21
0
document weights
Is there a mechanism or technique to allow me to boost document relevancy, independent of search terms?
I do not necessarily want to do any of the sorts described here: http://xapian.org/docs/sorting.html#sorting-by-value. Rather I'd like to sort by something like relevancy*boost factor, like: http://lucene.apache.org/java/2_3_2/api/org/apache/lucene/document/Document.html#setBoost(float)
2009 May 17
2
Chow test(1960)/Structural change test
Hi,
A question on something which normally should be easy !
I perform a linear regression using lm function:
> reg1 <- lm (a b+c+d, data = database1)
Then I try to perform the Chow (1960) test (structural change test) on my regression. I know the breakpoint date. I try the following code like it is described in the “Examples” section of the “strucchange” package :
> sctest(reg1,
2004 Jan 21
8
Calling Card Application
Hi there,
Regarding the calling card system, I would like to know what software tools are suitable to write the CDR system?
1) Perl (but what kind of database should be used?)
2) PHP + MySQL
3) or others suggestion?
Also, which one is easier to access AGI? Any source and information would be appreciated.
Best regards,
Max Chow
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2006 Jun 12
3
zfs destroy - destroying a snapshot
Hello zfs-discuss,
I''m writing a script to do automatically snapshots and destroy old
one. I think it would be great to add to zfs destroy another option
so only snapshots can be destroyed. Something like:
zfs destroy -s SNAPSHOT
so if something other than snapshot is provided as an argument
zfs destroy wouldn''t actually destroy it.
That way it would
2007 Jun 06
1
Chow Test
Hello R-users!
I tried to find a package to run a CHOW TEST. As a reference package I found
the STRUCCHANGE package. Do you know if it works well otherwise can you
recommend a different one?
Thanks, Bernd
--
View this message in context: http://www.nabble.com/Chow-Test-tf3878416.html#a10990270
Sent from the R help mailing list archive at Nabble.com.
2004 Oct 23
1
Never used wine
I read (some) docs got my CD set to r: with unhide set and ran setup on
a couple of CD's and it went well... Wacko? If there is a file that
errors are written to I could check that. But the screens kind of went
in to a "Vulcan mind meld" so it was hard to tell what was going on.
But It didn't crash the machine, I'm using Fedora 2.
Is there an installer I should be using
2012 Feb 09
1
How to properly build model matrices
I always bump into a few (very minor) problems when building model
matrices with e.g.:
train = model.matrix(label~., read.csv('train.csv'))
target = model.matrix(label~., read.csv('target.csv'))
(1) The two may have different factor levels, yielding different
matrices. I usually first rbind the data frames together to "meld"
the factors, and then split them apart and
2007 Oct 30
2
calculate spatial distance
Hi,
I have a set of locations defined by longitude and latitude (in degrees),
and want to calculate the spatial (or geographic) distance among all
locations.
I did not find such a function in the spatial-related packages. (I *cannot*
use 'dist', as I have geographic, not cartesian coordinates).
thanks!
Robert
Robert Ptacnik
Norwegian Institute for Water Research (NIVA)
Gaustadall?en 21
2008 Jul 04
1
kriging problem(?)
Hei,
I have two spatial datasets Sa and Sb, both with lat-lon coordinates and
from same geographic area, but from different localities within the area
(independent samples). Sa is biotoc data, Sb is some environmental
parameter (fertility). I 'know' that Sb affects Sa, but wonder on which
scale. I tried different interpolations by creating different grids of Sb
(e.g. 20x20 and 100x100
2007 Nov 29
1
relative importance of predictors
Hei Group,
I want to compare the relative importance of predictors in a multiple
linear regression y~a+bx1+cx2...
However, bptest indicates heteroskedasticity of my model. I therefore
perform a robust regression (rlm), in combination with bootstrapping (as
outlined in J. Fox, Bootstrapping Regression Models).
Now I want to compare the relative importance of my predictors. Can I rely
on the
2011 Apr 12
2
Testing equality of coefficients in coxph model
Dear all,
I'm running a coxph model of the form:
coxph(Surv(Start, End, Death.ID) ~ x1 + x2 + a1 + a2 + a3)
Within this model, I would like to compare the influence of x1 and x2 on the
hazard rate.
Specifically I am interested in testing whether the estimated coefficient
for x1 is equal (or not) to the estimated coefficient for x2.
I was thinking of using a Chow-test for this but the Chow
2006 Jun 10
1
Calculating survival for set time intervals
Hello friends and fellow R users,
I have successfully tabulated and entered my survival data into R and
have generated survival curves. But I would like to be able to determine
what the survival rates are now at one month, three months, six months
and one year.
I have a data set, via.wall, which I have entered into R, and which
generates the following Surv object:
Surv(Days,Status==1)
[1]
2007 Apr 03
5
[LLVMdev] Graph Coloring Regalloc
I'm just starting to dive into llvm, hoping to implement a
good graph coloring register allocator. I gather that this
has been discussed before.
What is the RegAllocGraphColoring.cpp currently in the
sources? It seems to be the Fred Chow algorithm but
it's not mentioned in the documentation anywhere. Does
it work?
-Dave
2014 Jun 04
1
C6.5 KDE - no more audio (yesterday it was ok)
Hi,
I've got an HP ZBook with C6.5 and KDE. Yesterday I was able to play music, today I can't get any sound out of my pc.
lspci -v
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
Subsystem: Hewlett-Packard Company Device 1909
Flags: bus master, fast devsel, latency 0, IRQ 34
Memory at cca30000 (64-bit, non-prefetchable)
2010 Jan 24
3
Display of results
Dear R-helpers,
I have been trying to carry out some variance ratio tests such as
Lo-MacKinlay test and Chow-Denning test. However, When I write the
function LM <- Lo.Mac(y,kvec)
or any other functions I don’t get the results displayed. The only
sign I get is <
I don’t understand what’s wrong (is it the package, misspecification
of the function, Vista). I am really stuck in and I would be
2007 Nov 28
2
fit linear regression with multiple predictor and constrained intercept
Hi group,
I have this type of data
x(predictor), y(response), factor (grouping x into many groups, with 6-20
obs/group)
I want to fit a linear regression with one common intercept. 'factor'
should only modify the slopes, not the intercept. The intercept is expected
to be >0.
If I use
y~ x + factor, I get a different intercept for each factor level, but one
slope only
if I use
y~ x *