Displaying 20 results from an estimated 14940 matches for "crossing".
2008 Sep 19
0
panel data analysis possible with mle2 (bbmle)?
Dear R community,
I want to estimate coefficients in a (non-linear) system of equations using
'mle2' from the "bbmle" package. Right now the whole data is read in as just
one long time series, when it's actually 9 cross sections with 30 observations
each. I would like to be able to test and correct for autocorrelation but
haven't found a way to do this in this package.
2016 Sep 20
2
[cfe-dev] Recent clang regressions
I get some failing tests from compiler-rt.
FAIL: cfi :: cross-dso/stats.cpp (30831 of 30893)
******************** TEST 'cfi :: cross-dso/stats.cpp' FAILED
********************
Script:
--
/usr/local/google/home/prazek/llvm-build-release/./bin/clang -fuse-ld=gold
-flto -fsanitize=cfi -fwhole-program-vtables --driver-mode=g++
-fsanitize-cfi-cross-dso -fvisibility=default -DSHARED_LIB -fPIC
2000 Dec 18
2
cross compiling configure errors
Hi all!
I want to cross compile openssh to our own CPU and our embedded
Linux platform, however I get at least the following errors when running
configure:
checking whether snprintf correctly terminates long strings... configure:
error: can not run test program while cross compiling
checking whether getpgrp takes no argument... configure: error: cannot check
getpgrp if cross compiling
checking
2013 Jan 27
3
Package: VennDiagram. Error in draw.pairwise.venn Impossible: cross section area too large
Dear list,
When I use VennDiagram package, I got a error as follow:
venn.plot <- draw.pairwise.venn(
area1 = 3186,
area2 = 325,
cross.area = 5880);
Error in draw.pairwise.venn(area1 = 3186, area2 = 325, cross.area = 588) :
Impossible: cross section area too large.
Does anyone have suggestion?
Thank you.
2005 Apr 19
2
cross validation and parameter determination
Hi all,
In Tibshirani's PNAS paper about nearest shrunken
centroid analysis of microarrays (PNAS vol 99:6567),
they used cross validation to choose the amount of
shrinkage used in the model, and then test the
performance of the model with the cross-validated
shrinkage in separate independent testing set. If I
don't have the luxury of having independent testing
set, can I just use the
2012 Jun 01
1
trouble with append() in a for loop
Hello all,
*
*
I'm having some difficulty, and I think the problem is with how I'm using
append() nested inside a for loop. The data are:
y,x
237537.61,873
5007.148438,227
17705.77306,400
12396.64369,427
228703.4021,1173
350181.9752,1538
59967.79376,630
140322.7774,710
42650.07251,630
5382.858702,264
34405.82429,637
92261.34614,980
144927.1713,1094
362998.7355,1420
203313.6442,1070
2010 Aug 23
3
[LLVMdev] Problem cross-compiling llvm-gcc for AIX-PowerPC
Compiling llvm-gcc on an x86 machine with
--target=powerpc-ibm-aix5.1.0.0, I get the following error:
make \
CFLAGS="-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Wold-style-definition
-Wmissing-format-attribute " \
CONFIG_H="config.h auto-host.h
2005 Oct 31
1
how to optimise cross-correlation plot to study time lag between time-series?
Dear R-help,
How could a cross-correlation plot be optimized such that the relationship
between seasonal time-series can be studied?
We are working with strong seasonal time-series and derived a
cross-correlation plot to study the relationship between time-series. The
seasonal variation however strongly influences the cross-correlation plot
and the plot seems to be ?rather? symmetrical (max
2009 Jun 09
3
rpart - the xval argument in rpart.control and in xpred.rpart
Dear R users,
I'm working with the rpart package and want to evaluate the performance of
user defined split functions.
I have some problems in understanding the meaning of the xval argument in
the two functions rpart.control and xpred.rpart. In the former it is defined
as the number of cross-validations while in the latter it is defined as the
number of cross-validation groups. If I am
2007 Jul 23
4
nnet 10-fold cross-validation
Hi
It clear that to do a classification with svm under 10-fold cross
validation one uses
svm(Xm, newlabs, type = "C-classification", kernel = "linear",cross =
10)
What corresponds to the nnet?
nnet(.....,cross=10)?
Regards
2009 Jul 08
1
SVM cross validation in e1071
Hi list,
Could someone help me to explain why the leave-one-out cross validation results I got from svm using the internal option "cross" are different from those I got manually? It seems using "cross" to do cross validation, the results are always better. Please see the code below. I also include lda as a comparison.
I'm using WinXP, R-2.9.0, and e1071_1.5-19.
Many
2020 Nov 11
0
Building an LLVM cross-compiler
You could try using zig for this. Here's an example build script of zig
cross compiling llvm, lld, clang, and finally itself:
https://github.com/ziglang/zig-bootstrap
You can see the build script is not too complicated. The main trick is
using CC and CXX to use `zig cc` and `zig c++` as drop-in replacements
for a C and C++ compiler, respectively.
I wrote some more details about this
2002 Dec 17
2
Cross-correlograms or cross-variograms in R?
Hello group,
For my PhD I'm working on a spatial sampling grid. I do have two data sets
which I'd like to compare using cross-correlograms or cross-variograms.
Is this an option in one of the R-packages? I've been searching the R-help
archive and the available package-documentations, but I can't find how to do
this.
Thanks in advance,
Ren?.
2005 May 14
2
[LLVMdev] Cygwin llvm-gcc build error
Now I believe that I am getting the same error as I was getting last time I
tried to build llvm-gcc.
It may possibly be my Cygwin instillation but am not sure.
makeinfo --split-size=5000000 -I ../../../src/llvm-gcc/gcc/doc -I
../../../src/
llvm-gcc/gcc/doc/include \
-o ../../../src/llvm-gcc/gcc/doc/cpp.info
../../../src/llvm-gcc/gcc/doc/cpp.texi
' in
2008 Apr 30
3
Cross Spectrum Analysis
I am reading some documentation about Cross Spectrum Analysis as a technique
to compare spectra.
My understanding is that it estimates the correlation strength between
quasi-periodic structures embedded in two signals. I believe it may be
useful for my signals analysis.
I was referred to the R functions that implement this type of analysis. I
tried all the examples which generated a series of
2020 Nov 06
0
Building an LLVM cross-compiler
Hi everyone,
I recently sent a message that may or may not have made it to the list,
on problems building an LLVM cross-compiler. Now the issue seems clear
to me and is irrelevant at this point, I would like to discuss the general
issue.
Suppose you have a host system, a Linux distribution on an x86_64 machine,
and want to build a cross-compiler for aarch64 (or any platform supported
by LLVM,
2009 Sep 20
1
Computing the sum of cross products of rows of a matrix
Hi everyone,
I would like to compute the sum of cross products of rows of a
matrix. Does anyone know how to do this without an explicit loop for
computational efficiency? Below is a code example.
Thanks!
Stephan
# I.e., if I have a matrix like this
x <- matrix(rep(c(1,2,3),3),ncol=3)
## > x
## [,1] [,2] [,3]
## [1,] 1 1 1
## [2,] 2 2 2
## [3,] 3 3
2012 Dec 02
1
e1071 SVM: Cross-validation error confusion matrix
Hi,
I ran two svm models in R e1071 package: the first without cross-validation
and the second with 10-fold cross-validation.
I used the following syntax:
#Model 1: Without cross-validation:
> svm.model <- svm(Response ~ ., data=data.df, type="C-classification",
> kernel="linear", cost=1)
> predict <- fitted(svm.model)
> cm <- table(predict,
2016 Sep 20
2
Recent clang regressions
There seem to be some recent regressions in clang/llvm. I see some test
failing, and there is also this issue:
https://llvm.org/bugs/show_bug.cgi?id=30466
Is anyone working on it?
Piotr
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2009 Oct 21
3
Cross-compiling speex
Hi all,
I'm cross-compiling speex for a GNU/Linux ARM target.
I want to compile only the libraries, and not the speex executables.
I don't have a libogg cross-compiled, and would prefer the need to
have to set it up.
Unfortunately:
1/ the speex executables depend on libogg header files,
although, the speex executables are only compiled if the libogg header
files are available
2/ the