Displaying 20 results from an estimated 700 matches similar to: "calculating distances using Gower's coefficient on mixed variables."
2005 Oct 06
1
Compare two distance matrices
Hi all,
I am trying to compare two distance matrices with R. I would like to
create a XY plot of these matrices and do some linear regression on
it. But, I am a bit new to R, so i have a few questions (I searched in
the documentation with no success).
The first problem is loading a distance matrix into R. This matrix is
the output of a the Phylip program Protdist and lookes like this:
5
2018 Sep 19
3
Problem getting quota-warning script to function.
Hello,
Most of the work was done with dovecot 2.2.27 but I just upgraded to
2.3.2 and didn't see any change.? Some debug logs are below, is there
something specific I could search them for?
Sep 17 23:19:16 ezm11-pco dovecot: auth-worker(8299): Debug: Loading
modules from directory: /usr/lib/dovecot/modules/auth
Sep 17 23:19:16 ezm11-pco dovecot: auth-worker(8299): Debug: Module
loaded:
2012 Mar 22
1
How do you distinguish between characters on a pco plot?
I have a presence/absence matrix for which I create a distance matrix and
then perform pco analysis on.
/library(ecodist)
table <- read.table("matrix.pa")
dist <- dist(table, method = "euclidean", diag = FALSE, upper = FALSE)
dist.pco <- pco(dist)/
When I plot the pco analysis of the distance matrix I want to be able to
distinguish between certain characters, for
2006 Oct 01
0
New package 'ade4TkGUI', a Tcl/Tk GUI for ade4
Dear R-Users,
ade4TkGUI is a new package available on CRAN. It implements a Tcl/Tk
graphical user interface (GUI) for the ade4 package.
Only the most basic functions of ade4 have a GUI in this first
version : classical one-table data analysis methods (PCA, COA,
MCA, PCO, etc.), one table with groups of rows (BGA, WGA, DA),
and two-tables analysis methods (Coinertia analysis, CCA, PCAIV).
2006 Oct 01
0
New package 'ade4TkGUI', a Tcl/Tk GUI for ade4
Dear R-Users,
ade4TkGUI is a new package available on CRAN. It implements a Tcl/Tk
graphical user interface (GUI) for the ade4 package.
Only the most basic functions of ade4 have a GUI in this first
version : classical one-table data analysis methods (PCA, COA,
MCA, PCO, etc.), one table with groups of rows (BGA, WGA, DA),
and two-tables analysis methods (Coinertia analysis, CCA, PCAIV).
2011 Oct 03
4
distance coefficient for amatrix with ngative valus
Hi,
I need to run a PCoA (PCO) for a data set wich has both positive and negative values for variables. I could not find any distancecoefficient other than euclidean distace running for the data set. Are there any other coefficient works with negtive values.Also I cannot get summary out put (the eigen values) for PCO as for PCA.
Thanks.
Dilshan
[[alternative HTML version deleted]]
2011 Nov 05
1
testing significance of axis loadings from multivariate dudi.mix
Hi all
I?m trying to tests the significance of loadings from a ordination of 46 variables
(caategorical, ordinal and nominal). I used dudi.mix from ade4 for the ordination. A
years ago Jari Oksanen wrote this script implementing Peres-Neto et al. 2003 (Ecology)
bootstraping method:
netoboot <- function (x, permutations=1000, ...)
{
pcnull <- princomp(x, cor = TRUE, ...)
res
2005 Mar 14
1
Significance of Principal Coordinates
Dear all,
I was looking for methods in R that allow assessing the number of
significant principal coordinates. Unfortunatly I was not very
successful. I expanded my search to the web and Current Contents,
however, the information I found is very limited.
Therefore, I tried to write code for doing a randomization. I would
highly appriciate if somebody could comment on the following approach.
2009 Jan 24
1
Help with dudi.pca
Dear R-helpers,
I have two data frames, op and em4:
> str(op)
'data.frame': 37 obs. of 5 variables:
$ m : num 0.202 0.336 0.122 0.139 0.14 ...
$ lln : num 0.798 0.643 0.863 0.835 0.823 ...
$ rrn : num 0.789 0.702 0.894 0.895 0.923 ...
$ asym2: num 0.177 0.304 0.108 0.187 0.274 ...
$ asym3: num 0.0755 0.0975 0.0818 0.0651 0.13 ...
> str(rownames(op))
chr
2005 Nov 11
1
Snow parLapply
Dear R-user,
I am trying to use the function 'parLapply' from the 'snow' package
which is supposed to work the same wys as 'lapply' but for a
parallelized cluster of computers. The function I am trying to call in
parallel is 'dudi.pca' (from the 'ade4' package) which performs
principal component analyses. When I call this function on a list of
2006 May 03
2
mca id numbers
Is it possible to make disappear the id numbers from scatter.dudi (mc
analysis) ?
a <- as.factor(c(1, 2, 3, 2, 1))
b <- as.factor(c(3, 2, 3, 1, 1))
x <- as.factor(c(1, 2, 2, 1, 3))
y <- as.factor(c(2, 2, 3, 1, 1))
dat <- data.frame(a=a, b=b,x=x,y=y)
summary(dat)
dat
require(ade4)
dat.acm <- dudi.acm(dat, scann = FALSE, nf = 2)
scatter.dudi(dat.acm)
Thank you very much !
2013 Aug 27
2
Encontrar las variables más importantes en componentes principales
Hola compañeros de la lista. Qué tal.
Tengo un análisis de componentes principales, en el que se evalúan
aproximadamente 1000 variables. Usando la función dudi.pca e
inertia.dudi obtengo una cantidad de información sobre la influencia de
las variables sobre los dos componentes principales. Me gustaría saber
si existe alguna función que sobre esta información me arrojara la lista
de
2004 Jan 01
1
ade4
Dear All,
I am using the scatter.dudi finction in the 'ade4' package to produce
correspondence analysis (nice) plots.
I do not seem to figure out how to plot the raw coordinates only -- or column
coordinates only. I would appreciate any help in doing that.
Here is the example I am following -- from the package.
data(banque)
> banque.acm <- dudi.acm(banque, scann = FALSE, nf =
2006 Jul 20
2
Correspondence analysis with R -follow up
Hi all,
thank you for your answers; i've tried both cca from vegan library, and
dudi.coa from ade4 library; one last question: my deal is mainly with
contingency tables, like the one i'm posting here
acciaieria<-c(.41,.02,.44,.04,.09)
laminatoio<-c(.34,.28,.26,.01,.11)
fonderia<-c(.48,.05,.34,.08,.05)
leghe<-c(.45,.19,.25,.03,.08)
2013 Aug 29
1
Resumen de R-help-es, Vol 54, Envío 22
Hola! No he podido consultar la doc. del paquete ade4, algo debe estar caído en CRAN ahora mismo.
Dos cosas sobre la metodología -aun desconociendo los detalles de cómo lo hace ade4:
El output de un PCA, los "pesos" de cada variable en las dimensiones de los componentes se interpretan como correlaciones, a mayor valor absoluto mayor asociación variable-componente. Ahora, como tales
2013 Oct 01
5
Análisis de componentes principales con ade4 y FactoMineR
Hola compañeros de la lista, qué tal.
Estoy haciendo un análisis de componentes principales utilizando
las funciones "dudi.pca" (paquete "ade4") y "PCA" (paquete
"FactoMineR"). Sucede que al comparar las coordenadas de cada individuo
que obtiene cada función, las que corresponden al segundo componente
principal tienen idéntica magnitud pero con
2017 Jun 24
9
Limit IMAP/IMAPS listening IPs
Hello list.
I am running dovecot v2.2.13 on debian 8.8;
I tried to add a "address =" statement for only localhost and one private IP, but then I got a complaint from system:
dovecot[20515]: Error: systemd listens on port 143, but it's not configured in Dovecot. Closing.
What is the proper way to resolve this?
TIA & Regards,
Dudi
2007 Oct 16
2
Canberra distance
Hi,
I misunderstand the definition of Canberra distance in R.
On Internet and in function description pages of dist() from stats and
Dist() from amap, Canberra distance between vectors x and y, d(x,y), is :
d(x,y) = sum(abs(x-y)/(x+y))
But in use, through simple examples, we find that the formula is :
d(x,y) = (NZ + 1)/NZ * sum(abs(x-y)/(x+y))
with NZ = nb of pairs of coordinates that are
2018 Sep 18
2
Problem getting quota-warning script to function.
Hello,
I'm trying to implement quota enforcement in our mailservers, and it is
all working properly except that the quota warnings are not firing when
the quota levels are passed.? the server stops accepting email when the
quota is reached, and you can see tyhe quota usage through the email
client connected through, but as the quota passes the set levels the
/usr/local/bin/quota-warning.sh
2018 Sep 24
2
Problem getting quota-warning script to function.
Hello,
I haven't received a reply since I sent my last logs in, so I thought
I'd ask again and update the thread.? I had trouble getting the server
to work properly on dovecot 2.3.2 so I rebuilt the server back on
2.2.27.? I've got the quota enforcement itself working, but the warnings
still fail to fire. ? I've attached logs with mail_debug=yes for the
period from the send which