Displaying 20 results from an estimated 10000 matches similar to: "--as-cran and need to ignore.svn directories"
2006 Jun 15
3
MDS with missing data?
Hello
I will be applying MDS (actually Isomap) to make a
psychological
"concept map" of the similarities between N concepts.
I would like to scale to a large number of concepts,
however, the
resulting N*(N-1) pairwise similarities is prohibitive
for a user survey.
I'm thinking of giving people random subsets of the
pairwise
similarities.
Does anyone have recommendations for this
2004 Dec 13
2
Switching to Mac, suggestions? (was switching to linux)
I'm looking to switch to Mac platform. Anyone had any experience
with that? I'm expecting on a power G4 laptop later this week.... hope
R behaves...
-- dok
2002 Oct 30
4
Sweave in packages
Dear R folks,
One of the fantastic new tools in R is `Sweave'. I have tested it so much that I
know it works and produces fine documentation, and with (GNU) Emacs/ESS it is
nice to work with, too. I started to have a look at including some Swoven (is
that a strong verb?) documentation with my R package, but it seems that there is
no model to copy among those packages that I have installed in
2001 Mar 05
1
Canberra dist and double zeros
Canberra distance is defined in function `dist' (standard library `mva') as
sum(|x_i - y_i| / |x_i + y_i|)
Obviously this is undefined for cases where both x_i and y_i are zeros. Since
double zeros are common in many data sets, this is a nuisance. In our field
(from which the distance is coming), it is customary to remove double zeros:
contribution to distance is zero when both x_i
2001 Mar 05
1
Canberra dist and double zeros
Canberra distance is defined in function `dist' (standard library `mva') as
sum(|x_i - y_i| / |x_i + y_i|)
Obviously this is undefined for cases where both x_i and y_i are zeros. Since
double zeros are common in many data sets, this is a nuisance. In our field
(from which the distance is coming), it is customary to remove double zeros:
contribution to distance is zero when both x_i
2005 Aug 08
2
INDVAL and mvpart
Hi,
I'd like to perform Dufrene-Legendre Indicator Species Analysis for
a multivariate regression tree. However I have problems with arguments
of duleg(veg,class,numitr=1000)function. How to obtain a vector of
numeric class memberships for samples, or a classification object
returned from mvpart?
thanks in advance
--
Best regards,
Agnieszka Strzelczak
2003 Mar 27
5
Plot of Canonical Correlation Analysis
Dear all,
I didn't find any graphical solution in the package "mva" to plot the
canonical scores from a CCA (canonical correlation analysis).
Does anybody knows how to plot or has anybody already programmed :
- the map of the canonical scores,
- the graph of the canonical weights,
- the correlation circle i.e. the canonical loadings ?
Thank you for help ...
2004 Nov 07
1
rgl on Mac OS
Hi,
It seems like a number of people on this list can install rgl but have
problem loading it. I found myself in the same situation too.
I have tried the workaround of removing /usr/X11R6/lib from
DYLD_LIBRARY_PATH, but it doesn't seem to work for me, I am still getting
the same error (that everyone else seems to get). Can anyone give me some
ideas on what else to try?
I have Mac OS 10.3.5,
2002 May 03
1
On creating an R package..
Dear R-help,
I'm trying to create a simple R package that contains 3 string
functions, but I have run into some
problems: what are the correct permission for the files in the package
directory?
Yours faitfully,
Rasmus
* checking for file `stringfun/DESCRIPTION' ... OK
* checking package directory ... OK
* checking for sufficient/correct file permissions ... WARNING
* Found the
2002 Dec 16
1
unknown decorana error returned (vegan package)
Hi
After trying a simple decorana analysis (from the vegan package) on a simple
data frame which contains no NA's the following error was returned:
> tt_decorana(covN)
Error in decorana(covN) : NA/NaN/Inf in foreign function call (arg 1)
Have any vegan users come across this error and know what can be done about it?
Cheers,
J
2005 Aug 10
1
invalid 'mode' of argument?
Dear Colleagues,
As a novice I was trying to calculate Shannon diversity index using
diversity function in vegan package and kept having same error message.
Error in sum(..., na.rm = na.rm) : invalid 'mode' of argument
My dataset is from microarray and have abundant missing values, so I
tried labeling them as NA and 0, but still same error message.
Shannon index is negative
2004 Dec 01
2
step.gam
Dear R-users:
Im trying (using gam package) to develop a stepwise analysis. My gam
object contains five pedictor variables (a,b,c,d,e,f). I define the
step.gam:
step.gam(gamobject, scope=list("a"= ~s(a,4), "b"= ~s(b,4), "c"= ~s(c,4),
"d"= ~s(d,4), "e"= ~s(e,4), "f"= ~s(f,4)))
However, the result shows a formula containing the whole
2004 Dec 01
3
can't install r package on debian due to linker problem
hi,
my attempt to install the package Hmisc v3.0-1 fails with the message:
/usr/bin/ld: cannot find -lfrtbegin
collect2: ld returned 1 exit status
make: *** [Hmisc.so] Error 1
ERROR: compilation failed for package 'Hmisc'
i'm at a loss here. any hints will be very much appreciated.
i'm running:
debian stable
R version 2.0.1
gcc 2.95.4-14
g77 2.95.4-14
binutils 2.12.90.0.1-4
2005 Apr 20
4
results from sammon()
Dear all,
I'm trying to get a two dimensional embedding of some data using different
meythods, among which princomp(), cmds(), sammon() and isoMDS(). I have a
problem with sammon() because the coordinates I get are all equal to NA.
What does it mean? Why the method fails in finding the coordinates? Can I do
anything to get some meaningful results?
Thank you very much
Domenico
2004 Dec 10
1
How to circumvent negative eigenvalues in the capscale function
Dear All
I am trying to do a partial canonical analysis of principal coordinates
using Bray-Curtis distances. The capscale addin to R appears to be the only
way of doing it, however, when I try and calculate a Bray-Curtis distance
matrix either using Capscale or Vegedist (capscale I understand uses
Vegedist anyway to calculate its distance matrix), R uses up all available
memory on the computer,
2005 Jun 09
3
plot(corresp(data)...)
hi,
My code:
data<-matrix(data=c(0.425,0.5,0.75,0.125,0.25,0.475,0.375,0.25,0.625,0.5,0.1,0.125,0,0.25,0.25),nrow=3,ncol=5,byrow=TRUE, dimnames=list(c("Good","Medium","Bad"),c("Content","Logistic","Trainer","Supply","User contribution")))
plot(corresp(data,nf=2),xlim=c(-1,1),ylim=c(-1,1));
The plot is
2002 Jun 17
2
Random Beta variates
I have been trying to use the rbeta() function to generate random beta
variates with a particular mean and standard deviaiton for some simulation
problems
I am working on, however I am unsure of the relationship between the
parameters shape1 and shape2 and the mean and standard deviation of the
beta
distribution. I am guessing that there is a formula for this, but I am
unsure what it is. Can
2005 Apr 18
2
citation() chops "Roeland " (PR#7797)
Full_Name: Jari Oksanen
Version: 2.0.1, 2.1.0 beta (2005-04-17)
OS: Linux
Submission from: (NULL) (130.231.102.145)
If name ends with "and", such as "Roeland Lastname", citation() will chop "and"
as a separate word giving "Roel and Lastname". This is the case in the upcoming
release of vegan (1.6-8) just submitted to CRAN. Basically, this seems to happen
2002 Dec 12
3
y axis on hist
Hi:
The y axis on the hist function seems to set its limits oddly.
sometimes, it covers the full range of the data and sometimes it stops
one major tick short. I have had this behavior with a variety of data
sets, and it can easily be reproduced by just running the following
several times:
hist(rnorm(100000))
I have tried explicitly setting ylim to the range of values produced by
rnorm
2003 Jan 30
2
nearest neighbour interpolation
Dear Help List,
My name is Matt Oliver. I have been using R for about a year and find it very
helpful. However, I have a need for a function that I cannot find. I am not very
good at programming so I thought I would ask the group.
I have an irregular grid of data (x = Longitude, y = Latitude). Each pair of my x,y
has a categorical value. Obviously linear or any other numerically based