Displaying 20 results from an estimated 2000 matches similar to: "a nls question"
2007 Feb 19
2
optimization for OLPC
Hi,
I heard that Theora will be used on OLPC.
Is anyone working on optimization for OLPC?
Regards,
Chih-Chung Chang
2007 Mar 25
3
MMX patch to speed up Theora decoding
Hi,
Attached is a patch against 1.0alpha7 to speed up Theora decoding. It
is about 15~20% faster in my test. It consists of following things:
* MMX loop filter based on Rudolf Marek's patch in
http://lists.xiph.org/pipermail/theora-dev/2005-August/002838.html
* MMX IDCT based on Rudolf Marek's patch in
http://lists.xiph.org/pipermail/theora-dev/2005-July/002816.html
and the code in
2005 Jan 06
2
Segmentation fault while using Mclust function of mclust library in R-2.0.1
Hi, all;
I got an unusual error while using mclust library 2.1-7 on R 2.0.1.
When I tried to run Mclust(rnorm(100)), I got segmentation fault error.
Does anyone know what causes this problem?
I came across the same problem even when I tried to run the example shown in
Mclust help using iris data.
Thanks in advance,
Tae-Hoon Chung
--------------------------------------------------
Tae-Hoon Chung
2004 Jul 13
2
e1071 question: what's the definition of performance in t une.* functions?
Basically, the `Detail' section of ?tune says it all:
Details:
As performance measure, the classification error is used for
classification, and the mean squared error for regression. ...
Andy
> From: Tae-Hoon Chung
>
> Hi, all;
>
> Basically, the subject contains the all information I need to know.
> In e1071 library, there are functions to tune parameters.
2007 Jun 05
7
Chinese, Japanese, Korean Tokenizer.
Hi,
I am looking for Chinese Japanese and Korean tokenizer that could can
be use to tokenize terms for CJK languages. I am not very familiar
with these languages however I think that these languages contains one
or more words in one symbol which it make more difficult to tokenize
into searchable terms.
Lucene has CJK Tokenizer ... and I am looking around if there is some
open source that we
2005 Jul 29
4
Way to make R idle for some time and try something again later
Hi, All;
I have a question. In R, what is the best way to make R idle for a while and
try something again later? For example, suppose there is an R job which
accesses a file that may be shared with other active jobs. So when the file
is being accessed by other job, your job will not be able to access the file
and your job will crash because of that. To avoid this, you want your job to
try to
2007 Jul 09
7
Xapian pubmeet
Hi all,
A few of us have been discussing whether we should have a Xapian social
gathering of some kind. The current idea is meeting up in a pub in
London some time in autumn for drinks and food. However all of this
really depends on who might be able to come! It would be a chance to
meet other Xapian enthusiasts in an informal social setting and talk
about all things search-related (and
2015 Mar 16
2
[LLVMdev] Question: Motivation of the semantics of the undefined value?
Dear LLVMdev,
We have a question regarding the semantics of the undefined value in LLVM
IR.
As far as we understand, in order to give a semantics to the undefined
value, the semantics of LLVM IR is generalized to a rather unusual
set-based semantics. More specifically, the notion of value in LLVM IR is
generalized to a set of values, rather than a single value. Then the
undefined value is simply
2008 Sep 12
2
smbldaptools not creating unix group/users
Dear all,
I have setup a samba PDC on a debian lenny machine and everything works fine.
Recently, i want to integrate Samba with LDAP. When I use smbldap-populate,
the corresponding structures are created in the LDAP tree, however,
the unix groups
are not created at all! smbldap-populate did not complaint anything.
I have tested by using smbldap-useradd. The same problem appears. What are the
2004 May 19
3
Web-application using R
Hi, all;
Our group is planning to develop a web-based analysis package with R. I
have some questions.
(1) Can we use R as a daemon-like way such that, after invoking R and
making it run in a kind of background mode, just put some R script into
R using some pipe-like mechanism and retrieve the result out of it?
(2) If this is possible, then how can we do it? If this is not
possible, then what
2004 Jul 06
2
ESS does not recognize installed libraries
Hi, all. Something strange happened to my ESS.
I use Mac OS X. When R is used in stand alone mode, it recognizes
external libraries like "affy", "e1071" etc.
However, when R is invoked through ESS in Emacs, it produces errors
like:
Error in library(affy) : There is no package called 'affy'
Interestingly, I remember I successfully used these libraries through
ESS in
2009 Apr 30
2
How to skip rest of code
Dear R users,
Suppose I have 2 R script files: 'test1.R' and 'test2.R' and one R file 'main.R' which sources each of them. I wonder if there is a way to skip rest of code in 'test1.R' once a condition is met but still continue to run rest of script from the 'main'R' file.
A simple example is shown below. I hope only 'message1' and
2011 Apr 21
2
Chinese segmentation
hello, I have finished reading the papers, and i think it is time to design
my project.
First step will be determine the input characters are Chinese. i see the
past post that cjk-tokenizer is just dealing with UTF-8 and unicode, but i
see some other code system such as gbk and big5. i am wondering that should
i just deal with UTF-8 and unicode?
2004 Jul 01
5
Absolute ceiling on R's memory usage = 4 gigabytes?
Hello. By way of background, I am running out of memory when attempting to normalize the data from 160 affymetrix microarrays using justRMA (from the affy package). This is despite making 6 gigabytes of swap space available on our sgi irix machine (which has 2 gigabytes of ram). I have seen in various discussions statements such as "you will need at least 6 gigabytes of memory to normalize
2005 Jan 31
3
Special paper for postscript
Hi, All;
When I generate a "special" paper postscript image larger than "a4" or
"letter" using R, I can only see one-page portion of all image, of course.
What will be the simple solution for this? Is there any way I can set the
bounding box information on the image? Or any other suggestions?
Thanks in advance;
Tae-Hoon Chung
2013 Apr 10
6
means in tables
Hi.
I have 2 tables, with same dimensions (8000 x 5). Something like:
tab1:
V1 V2 V3 V4 V5
14.23 1.71 2.43 15.6 127
13.20 1.78 2.14 11.2 100
13.16 2.36 2.67 18.6 101
14.37 1.95 2.50 16.8 113
13.24 2.59 2.87 21.0 118
tab2:
V1 V2 V3 V4 V5
1.23 1.1 2.3 1.6 17
1.20 1.8 2.4 1.2 10
1.16 2.6 2.7 1.6 11
1.37 1.5 2.0 1.8 13
1.24 2.9 2.7 2.0 18
I need generate a table of averages, the
2014 Dec 12
2
[LLVMdev] dynamic data dependence extraction using llvm
Dear Dibyendu and Mobi,
Thanks for your help! :-)
I finally figure it out. The solution is really simple. I just need to
generate a new bitcode file with the following command:
-----
opt -mem2reg -indvars test1.bc -o test2.bc
-----
Then the load/store for induction variables will be removed and replaced by
PHI instructions and all remaining load/store instructions are those I am
interested in. I
2002 Mar 08
1
Two outbound links, switching after threshold is reached.
I''ve just started to recently look at CBQ and HTB, but I''ve been
wondering whether or not something like the following is possible:
I''ve got two external links:
+--+
| |-----ISP1
|FW|
| |-----ISP2
+--+
One link has a bandwidth cap, and the other doesn''t.
What I want to do is, punt all outbound traffic out via ISP1
2003 Apr 01
2
cor.test observations limit
Hi,
Is there a limit on the number of observations for using cor.test. For
example,
> library(ctest)
> cor.test(rnorm(3000), rnorm(3000), method="spearman")
Error in if (q > (n^3 - n)/6) pspearman(q - 1, n, lower.tail = FALSE) else
pspearman(q, :
missing value where logical needed
In addition: Warning message:
NAs introduced by coercion
I mainly want to calculate
2007 Jul 21
1
set class attribute method question
Hi, All;
Suppose I have a class 'dat' such that setClass('dat', representation
(.version='character', x='numeric', y='numeric')).
If I want to make a method that changes the .version slot of 'dat'
class in a way like set.version(d) <- '0.2' when d is an object of
'dat' class, how can I do this? Thanks in advance.
Tae-Hoon