Displaying 20 results from an estimated 900 matches similar to: "Can't install packages (PR#1486)"
2006 Aug 30
1
Handling realisations in geoRglm
Dear R users:
I want to model mosquito count data based on landcover attributes and
meteorological variables using a Poisson GLSM in the geoRglm package. I
have monthly mosquito counts over more than 20 years with repeated
observations from individual trap sites over time. I have used
as.geodata() to successfully read my dataset into the geodata format
utilized by geoR and geoRglm,
2012 Oct 04
4
Class for time series
Dear all,
I have a time serie dataset such as the following with data acquired
every 15 minutes:
Date Heure Profondeur Temp?rature Salinit? Turbidit? Chloration
1 2012-07-06 08:47:22 -0.144 22.469 0.011 0.000 0
2 2012-07-06 09:02:21 -0.147 22.476 0.011 0.000 0
3 2012-07-06 09:17:21 -0.139 22.498 0.011 19.323 0
4 2012-07-06
2012 Oct 10
3
Generating random geographical coordinates
Dear all,
I have two coordinates vectors, say X and Y of length n.
I want to generate for each couple of coordinates X1,Y1 X2,Y2
X3,Y3....Xn,Yn a random coordinate which is located in a square define
as X +/- dx and Y +/- dy.
I saw the runif function which can generate for just one value at a time
what I want : runif(1, X - dx, X + dx) for X and runif(1, Y - dy, Y +
dy) for Y.
I would like
2003 Feb 14
3
Change array size
Hi,
I would like to know if there is a way to change a vector of arbitrary size
to make it fits the nearest upper size multiple of a power of 2.
--
Cordialy
----------------------------------------
Emmanuel POIZOT
Cnam/Intechmer
Digue de Collignon
50110 Tourlaville
T?l : (33)(0)2 33 88 73 42
Fax : (33)(0)2 33 88 73 39
-----------------------------------------
2002 May 14
2
Raster management data
Hi,
I'm a newbie in R world.
I would like to develop an application that extract contour from objects of
an image.
- Is R able to manage raster data (i.e., images) ?
- Is there a specific package in change of such management ?
I'm specificaly interest in the Canny filter.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Emmanuel POIZOT
CNAM/INTECHMER
B.P. 324
50103 Cherbourg Cedex
T?l : 33 (0)2 33
2001 Dec 20
2
Modifying a function
Hello,
I'd writen a function in R composed of multiples lines.
How can I do to modify or delete on of the line of my function ?
--
Sincerely
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Emmanuel POIZOT
~ CNAM/INTECHMER
~ B.P. 324
~ 50103 CHERBOURG CEDEX
~ T?l : (33) 233 887 342
~ Fax : (33) 233 887 339
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2009 Jul 13
1
Times series adjustment
Dear all,
I want make correction depth of a bathymetric data set.
To do so, I have the depth data set sample every second (a depth at each
second) in one hand, and in the other hand, I have a tide variation
level data set sample every 250 ms. The time register in each data sets
(tide and bathymetric) is express in seconds followinf this format :
hh:mm:ss.ss
I would like to rectify the depth
2004 Sep 24
2
R from outside program
Hi all,
I'm writing a program in C++ in witch there should be some graphical outputs.
To do so, I would like to use R with the command :
R --no-save < cmdfile.R , where I put the R graphic commands in the
cmdfile.R file.
I call R from my C++ code but as R seems to run in batch mode, there are no
graphical outputs!
How can I do to get the graphics outputs ?
--
Sincerely
2001 Dec 13
2
Problem to interpret wilcox.test
I've got two set of data :
22.45 21.56 20.48 19.59 21.52 = A
and
22.15 21.98 20.42 20.58 19.61 = B
I perform a wilcox.test on this two set
wilcox.test(A, B) and I'd this answer:
Wilcoxon rank sum test
data: A and B
W = 12, p-value = 1
alternative hypothesis: true mu is not equal to 0
Should I interpret that there is no difference between the two sets ?
--
Cordialement
2012 Oct 04
1
geoRglm with factor variable as covariable
Dear R users.
I'm trying to fit a generalised linear spatial mode using the geoRglm
package. To do so, I'm preparing my data (geodata) as follow:
geoData9093 = as.geodata(data9093, coords.col= 17:18, data.col=15,*
covar.col=16*)
where covar.col is a factor variable (years in this case 90-91-92-93)).
Then I run the model as follow:
/
model.5 = list(cov.pars=c(1,1),
2003 Apr 08
1
Modeling the trend and eliminate it
Hi,
I would like to eliminate the trend of a set localised (with x an y) data.
I try to fit a linear model to the data:
mod.01 <- lm(ff~x+y)
I've got so a model. My question is how can I do to subtract the model from
the initial f data ?
--
Cordialement
----------------------------------------
Emmanuel POIZOT
Cnam/Intechmer
Digue de Collignon
50110 Tourlaville
T?l : (33)(0)2 33 88 73 42
2005 Dec 16
1
autocorrelation test
Hi all,
I would like to test the relevance of a vector field (i.e. if the
vectors are organized or not).
To do so, I would like to use an autocorrelation test, so that I have
two questions:
- is the Watson test applicable to that perpuse ?
- is the kuiper test applicable to that purpuse ?
Regards
------------------------------------------------
Emmanuel Poizot
Cnam/Intechmer
B.P. 324
50103
2005 Jul 13
3
nlme, MASS and geoRglm for spatial autocorrelation?
Hi.
I'm trying to perform what should be a reasonably basic analysis of some
spatial presence/absence data but am somewhat overwhelmed by the options
available and could do with a helpful pointer. My researches so far
indicate that if my data were normal, I would simply use gls() (in nlme)
and one of the various corSpatial functions (eg. corSpher() to be
analagous to similar analysis in SAS)
2005 Oct 24
2
Compilation package error
Dear all,
I tried to install gstat package and add the following compilation error :
------------------------>
* Installing *source* package 'gstat' ...
creating cache ./config.cache
checking for gcc... gcc
checking whether the C compiler (gcc ) works... yes
checking whether the C compiler (gcc ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether
2010 Nov 22
1
What if geoRglm results showed that a non-spacial model fits?
Hi R-people:
Working in geoRglm, it shows me, according to AIC criterion, that the non-spacial model describes the process in a better way. It's the first time that I'm facing up to.
These are my results:
OP2003Seppos.AICnonsp-OP2003Seppos.AICsp
#[1] -4
(OP2003Seppos.lf0.p<-exp(OP2003Seppos.lf0$beta)/(1+exp(OP2003Seppos.lf0$beta))) #P non spatial
#[1] 0.9717596
2002 May 13
1
Spatio-temporal analysis of homicide rates
Dear R-listers,
I would like to carry out a very basic descriptive analysis of homicides
rates in Italy, taking into account both the spatial dimension (103
provinces) and the temporal dimension (10 years), but no covariates. In
practice, what I would like to do is to describe spatio-temporal variation
of homicide rates, identifying those combinations of province-year where
the homicide rate
2008 Aug 12
1
Geodata object border
Sorry, this is probably quite an easy question, but I'm new to R and couldn't
find the answer anywhere.
I'm using geoR and geoRglm, but can't figure out how to get a border in my
geodata object. Does this need to be defined when I'm importing my data, or
afterwards, and how do I go about doing this?
Thanks
--
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2002 Jun 21
3
R News Volume 2/2
We have just published the 2002/2 issue of R News on
http://cran.R-project.org/doc/Rnews
where you can download the newsletter as PDF or Postscript file. It
will propagate to the CRAN mirrors within a day or two.
This issue focuses on the R 1.5.0 release, with key innovations in the
standard add-on package 'ts' and the two new recommended packages 'grid'
and 'lattice'.
2002 Jun 21
3
R News Volume 2/2
We have just published the 2002/2 issue of R News on
http://cran.R-project.org/doc/Rnews
where you can download the newsletter as PDF or Postscript file. It
will propagate to the CRAN mirrors within a day or two.
This issue focuses on the R 1.5.0 release, with key innovations in the
standard add-on package 'ts' and the two new recommended packages 'grid'
and 'lattice'.
2008 Jan 10
1
RODBC, postgresql on Linux
Dear all,
I facing pbs using RODBC library.
I'm working on a Linux (Ubuntu Gutsy) os, with R version 2.5.1.
I've got Postgresql 8.2.5 installed with the odbc-postgresql package.
I try to connect in a R session to a postgresql database using:
odbcConnect(dsn="thedatabasename",uid="theuser",pwf="thepasswd",case="postgresql")
I get a message error,