Displaying 10 results from an estimated 10 matches for "randtests".
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
2013 Mar 27
1
Conditional CCA and Monte Carlo - Help!
Hi All,
I am using canonical correspondence analysis to compare a community
composition matrix to a matrix of sample spatial relationships and
environmental variables. In order to parse out how much variance is
explained purely by space (S/E) or the environment (E/S) I am using a
conditional (partial) CCA. I want to test significance via Monte Carlo but
I can not find a way to do this with a
2015 Jun 09
2
Construcción de paquete
Buenas:
Estoy construyendo un paquete, cuyo fuente adjunto y necesito
importar la función runs.test desde el paquete tseries y la
función runs.test desde el paquete randtests. Esto hace que al
hacer un chequeo del paquete con "R --check --as-cran" me dé como
aviso "replacing previous import by ?tseries::runs.test? when
loading ?RcmdrPlugin.UCA?" lo que no le gusta a los responsables
de publicar el paquete.
¿Alguna sugerencia?
P.D.: Utilizo R ve...
2007 Sep 05
1
question: randomization t-test function already defined in R?
Dear R Users,
I am hoping you can help me.
I have received code from a colleague who uses Matlab. I need to
translate it into R.
I am wondering if there is a randomization t-test (from non-parametric
statistics) function already defined in R.
(In Matlab the function is randtest.m.)
************************************************************************
**********
QUESTION: Is anyone
2008 May 22
1
AMOVA results from ade4 different than in the reference publication
Hello,
I am trying to run some AMOVA analyses with the amova function in the
package ade4.
When running the example dataset provided in ade4, I noticed a
difference between the published results from the same data (Excoffier
et al. 1992) and what ade4 calculates.
Below are the data for "within sample/population" from ade4 and from the
haplotypic distance matrix in the paper:
2016 Mar 28
7
Mann-Whitney con datos temporales
Hola a tod en s,
queremos hacer una comparación entre dos lugares muy alejados entre sí
en relación a la temperatura de cada sitio usando medias horarias de
un período determinado. Sólo hay medidas de un sensor en cada sitio y
queremos saber si las diferencias son significativas o no entre
sitios/curvas. Hemos usado un test de Mann?Whitney U con la función
wilcox.test (paired=F) ya que los
2015 Mar 24
4
Aleatoriedad
Hola de nuevo, ya empiezo a ser pesado ¿no? bueno, no importa porque
aprendemos todos. Eso, al menos, me parece.
Hoy estuve estudiando en R el tema de la aleatoriedad. Veo que hay
múltiples posibilidades pero me están chocando mucho. Encuentro que el
generador de números pseudo aleatorios es más pseudo de lo que debería.
Me explico, quiero generar 0 y 1 aleatorios. Estoy trabajando con una
2006 May 19
4
Cross correlation/ bivariate/ mantel
> Background:
> OS: Linux Ubuntu Dapper
> release: R 2.3.0
> editor: GNU Emacs 21.4.1
> front-end: ESS 5.2.3
> -----------------------------
> Colleagues
>
I have two spatial datasets (latitude, longitude, fish eggs) and (latitude, longitude, fish larvae) at the same 280 stations (i.e. 280 cases). I want to determine if the 2 datasets are spatially correlated. In other
2004 Nov 16
5
Difference between two correlation matrices
Hi
Now a more theoretical question. I have two correlation matrices - one
of a set of variables under a particular condition, the other of the
same set of variables under a different condition. Is there a
statistical test I can use to see if these correlation matrices are
"different"?
Thanks
Mick
2010 Aug 24
0
mlm for within subject design
Thank you for reading. I am trying to get sphericity values, and I understood I need to use mlm, but how do I implement a nested within subject design in mlm? I already read the R newsletter, fox chapter appendix, EZanova, and whatever I could find online.
My original ANOVA
anova(aov(resp ~ sucrose*citral, random =~1 | subject, data = p12bl, subset = exps==1))
Or
anova(aov(resp ~