Displaying 20 results from an estimated 100 matches similar to: "package fdim slopeopt error (PR#6819)"
2004 Apr 12
2
fractal calculation using fdim
Hello
I am getting this
Error in slopeopt(AllPoints, Alpha) : Object "LineP"
not found
when the dim(<data.frame>) of the data matrix for
which the fdim is being calculated hits a certain
values depending on the data set. e.g
print(dim(mat))
fd <- fdim(mat,q=2)
[1] 2743 2
[1] 2742 3
[1] 2741 4
[1] 2740 5
[1] 2739 6
[1] 2738 7
[1] 2737 8
[1] 2736 9
[1] 2735
2017 Aug 10
2
Problem with the fdim package
Hi,
I?m new to R but I?m interested in using the fdim package to find the fractal dimension of a dataset. I downloaded the the package from https://cran.r-project.org/src/contrib/Archive/fdim/ and successfully installed it together with xgobi.
However, when I try to run the first example, after df <- fdim(mydata,q=0,Alpha=0.3) I get the following error:
Error in .C("pointdif",
2009 Apr 24
1
Box-counting dimension and package 'fdim'
Dear R-helpers,
I am looking for an implementation of the box-counting algorithm to
estimate the box dimension of a cloud of points in 3D (aka fractal
dimension, or similarity dimension).
The package 'fdim' might be doing this, but the documentation is awful
and I don't understand what is what there.
Does anyone know of an implementation of this algorithm in R, or
elsewhere, or
2001 Jan 25
0
fdim problems
hi
I am trying to use the add-on package fdim to calculate fractal
dimesionality of some time series data.
I keep getting an error - trying to run simple example from the help
pages
Error in if (MaxDiff > Chi2) { : missing value where logical needed
when I set the debug option of the function slopeopt()
I get the following read out...
[1] "###############################"
[1]
2006 Apr 10
0
fdim questions
R-users:
My problem: the package fdim (which measures fractal dimensions of
datasets) apparently prefers 3-D (XYZ) datasets. I'm trying to
measure the information dimension (a type of fractal dimension) of a
2-D (XY) dataset.
Here's some examples of the preferred 3-D data (XYZ):
library(fdim)
XYZ <- (makehplane(NumN=300, DimM=3, Longit=300))
fdim(XYZ,q=0.999999,PlotF=TRUE)
2017 Aug 11
0
Problem with the fdim package
Hm, I am not an expert in this field but trying to use obviously old package which was removed about 5 years ago from CRAN is asking for problems. There is probably some incompatibility between recent R version and obsolete package.
You either
1. need to install/compile R version from 2012 and install/compile this old package for this version.
2. Or you could try to find some similar
2004 Mar 06
1
(no subject)
Hello group.
I am trying to install fdim on my win2000 os. this
command is giving error and I feel I am not using it
correctly, could some one show me why.
install.packages(fdim,
"C:\Program Files\R\rw1081\library" ,
CRAN = "http://cran.r-project.org",
"internal",
available = NULL,
destdir = "C:\Program Files\R\rw1081\library",
installWithVers =
2005 Jan 27
2
Results of MCD estimators in MASS and rrcov
Hi!
I tested two different implementations of the robust MCD estimator:
cov.mcd from the MASS package and
covMcd from the rrcov package.
Tests were done on the hbk dataset included in the rrcov package.
Unfortunately I get quite differing results -- so the question is whether
this differences are justified or an error on my side or a bug?
Here is, what I did:
> require(MASS)
>
2001 Oct 11
2
Where's MVA?
Hi All:
Package TSERIES is stated to depend on MVA. However, there is no MVA package to be found under the list of package sources.
Best wishes,
ANDREW
tseries: Package for time series analysis
Package for time series analysis with emphasis on non-linear and non-stationary modelling Version: 0.7-6
Depends: ts, mva, quadprog
Date: 2001-08-27
Author: Compiled by Adrian
2017 May 02
1
R 3.4 and mclapply assertion failure - is this a bug?
Dear all,?
I am not sure if this is a bug, so I prefer to post it here before filing.
After upgrading to 3.4 I encounter the following message with mclapply:
Assertion failure at kmp_runtime.cpp(6480): __kmp_thread_pool == __null.OMP: Error #13: Assertion failure at kmp_runtime.cpp(6480).OMP: Hint: Please submit a bug report with this message, compile and run commands used, and machine
2005 Apr 08
1
orphaning CRAN packages
Dear R Developers,
the following CRAN packages do not cleanly pass R CMD check for quite
some time now and did not have any updates since the time
given. Several attempts by the CRAN admins to contact the package
maintainers had no success.
norm, 1.0-9, 2002-05-07, WARN
sound, 0.6, 2002-08-31, WARN
Bhat, 0.9-07, 2003-11-04, WARN
HI, 0.1, 2003-11-04, WARN
mmlcr, 1.3.2, 2003-11-15, WARN
mvnmle,
2004 Sep 15
1
fractal dimension of an image
Hello, I have a problem that I think can be solved in R but I'm not sure
how to tie things together.
I have a digital image of a crystal growth in 2 dimensions. And my aim
is to calculate the fractal dimension of the crystal. I was planning to
use the box counting method.
So I need to read in the image in R (for which I can use the pixmap or
rimage packages) and then draw a grid over at a
2010 Sep 21
3
bivariate vector numerical integration with infinite range
Dear list,
I'm seeking some advice regarding a particular numerical integration I
wish to perform.
The integrand f takes two real arguments x and y and returns a vector
of constant length N. The range of integration is [0, infty) for x and
[a,b] (finite) for y. Since the integrand has values in R^N I did not
find a built-in function to perform numerical quadrature, so I wrote
my own after
2003 Jan 22
1
re: box counting method and other landscape ecology measures
Hi all,
I wish to implement various landscape ecology measures through R, such
as: box counting dimension; twist number statistics; contagion and
lacuniarity indices; angular second moment; adjacency measures;
dominance indices; etc ...
Some of the measures can be applied to shape analysis and classification.
Is anyone implementing any of these measures? If so I would like to
contribute and
2018 Feb 06
2
libc++ cross-compile linux-armv7 and math function problems
Hello,
I am trying to cross-compile libc++ from my x86_64 linux system to armv7hf.
We have our own gcc compiler that we build with crosstools-ng (based on gcc
6.3.0) and I set my environment like this:
CC=armv7a-plex-linux-gnueabihf-gcc
CXX=armv7a-plex-linux-gnueabihf-g++
CFLAGS=-fPIC -DPIC -mfloat-abi=hard -march=armv7-a -Os -mfpu=vfpv3-d16
--sysroot=<path>
CXXFLAGS=-fPIC -DPIC
2018 Feb 06
0
libc++ cross-compile linux-armv7 and math function problems
At first glance, it looks like long double functions (such as fabsl and friends) are missing from your sysroot's <math.h>. Does your target support long double at all?
-Dimitry
> On 6 Feb 2018, at 09:51, Tobias Hieta via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Hello,
>
> I am trying to cross-compile libc++ from my x86_64 linux system to armv7hf. We have
2018 Feb 06
1
libc++ cross-compile linux-armv7 and math function problems
Hello Dimitry and thanks for your answer.
I am pretty sure it does indeed support long double. It's configured with
vfpv3-d16 - but I noticed that c++config.h in gcc has _GLIBCXX__HAS_FABSL
and friends are undefined. I think I need to look deeper at the
configuration of our toolchain.
long double support is required in libc++ then I gather?
-- Tobias
On Tue, Feb 6, 2018 at 11:47 AM,
2004 Apr 30
3
absolute value
Hello
could you please tell me what is the function to get
the absolute value of the real or complex number.
most of other languages it is abs(x) , what is it in
r?
I did few searhces in the help docs for no avail.
thanks
F.J
2004 Mar 16
3
rate of change
Hello
I am wondering, how do I find if R has a certain
funciton to do a given task. do I just type
help.search("rate").
I am just trying to find a function to calculate the
rate of change for a variable. I could come up with
one if there isn't any allready builtin.
thanks
2017 May 02
0
R 3.4 and mclapply assertion failure - is this a bug?
That's great news that OpenMP is now enabled in MacOS CRAN binaries! Thanks
Simon.
data.table is supposed to automatically switch down to single-threaded mode
when explicitly parallelized via the fork mechanism. It does that via
functions registered in init.c as follows :
pthread_atfork(&when_fork, &when_fork_end, NULL)
Tests 1705 and 1706 test this is working. Those tests