[R] External functions called by my functions
Hello, Is there any way to list all the functions called inside a given set of functions? Something like the function foodweb from mvbutils. This function maps the relations between the functions of a package, but what I need is something to show me the relations with external functions. Thanks, Frederico Mestre – mestre.freder...@gmail.com ResearchGate: https://www.researchgate.net/profile/Frederico_Mestre Conservation Biology Unit (UBC) Research Center in Biodiversity and Genetic Resources – Évora (CIBIO-UE) Research Group in Applied Ecology (ApplEcol) University of Évora Biology Department Núcleo da Mitra 7002 – 554 – Évora PORTUGAL [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Error loading workspace
Hello, I'm trying to load a workspace and I'm getting this error: value of 'SET_ATTRIB' must be a pairlist or NULL, not a 'double' Is there anything I can do to correct this? Cheers, Frederico Mestre [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Generate quasi-random positive numbers
Hello all: Is it possible to generate quasi-random positive numbers, given a standard deviation and mean? I need all positive values to have the same probability of selection (uniform distribution). Something like: runif(10, min = 0, max = 100) This way I'm generating random positive numbers from a uniform distribution. However, using runif I can't previously select SD and mean (as in rnorm). Alternatively, I'm able to generate a list of quasi-random numbers given a SD and a mean. b <- (sqrt(SD^2*12)+(MEAN*2))/2 a <- (MEAN*2) - b x1 <- runif(N,a,b) However, negative values might be included, since "a" can assume a negative value. Any help? Thanks, Frederico [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] filling list of data frames
Hello:
I have a list of data frames, built like this: the second df is a result of
a function applied to the first, and so on.
So the ith df is always dependent on the (i-1)th df. I've been doing this
using for loops. However I think I have too many for loops which is making
my code run slowly.
Is there any workaround this? How can I avoid the use of for loops?
As an example:
output.list <- as.list(rep("", 100))#creation of a list
output.list[[1]] <- df1#first position
for(I in 2:100){#following positions
df0 <- output.list[[i-1]]
df0_1 <- f1(df0)#function applied to the previous df
output.list[[i]] <- df0_1#new df
}
thanks,
Frederico
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[R] RES: adding points to a point pattern
Hello, Yes, I'm using spatstat. Sorry, I forgot to mention that. Thanks, Frederico -Mensagem original- De: Rolf Turner [mailto:rolf.tur...@xtra.co.nz] Enviada em: terça-feira, 4 de Setembro de 2012 02:04 Para: Frederico Mestre Cc: r-help@r-project.org; adrian.badde...@csiro.au Assunto: Re: [R] adding points to a point pattern On 04/09/12 11:58, Frederico Mestre wrote: > Hello all: > > > > Is there any way to add points to a point pattern, while keeping a > given minimum distance amongst this new points and the pre-existing points? > Presumably this is a question about the "spatstat" package. If so, the answer is "yes". At least two ways: (1) Using rmh() --- need to specify "beta" (the "chemical" activity parameter). E.g. # Generate a "test pattern" to which to add points. set.seed(42) X <- rSSI(0.05,100) # Add points. M <- rmhmodel(cif="hardcore",par=list(beta=300,hc=0.05)) Y <- rmh(M,start=list(x.start=X),expand=1,control=list(x.cond=as.data.frame(X))) plot(Y,main="Pattern with points added via rmh") plot(X,add=TRUE,chars=20,cols="red") print(min(nndist(Y))) (2) Using rSSI() --- need to specify the *total number* of points desired. E.g. # Add points to the same "test pattern", in a different way. Z <- rSSI(0.05,npoints(X)+42,x.init=X) plot(Z,main="Pattern with points added via rSSI") plot(X,add=TRUE,chars=20,cols="red") print(min(nndist(Z))) HTH cheers, Rolf Turner __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] RES: adding points to a point pattern
Hello, I'm trying to make a function in R in which I need to do this. Frederico -Mensagem original- De: Jeff Newmiller [mailto:jdnew...@dcn.davis.ca.us] Enviada em: terça-feira, 4 de Setembro de 2012 01:30 Para: Frederico Mestre; r-help@r-project.org Assunto: Re: [R] adding points to a point pattern Perhaps. What does this have to do with R? --- Jeff NewmillerThe . . Go Live... DCN:Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/BatteriesO.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --- Sent from my phone. Please excuse my brevity. Frederico Mestre wrote: >Hello all: > > > >Is there any way to add points to a point pattern, while keeping a >given minimum distance amongst this new points and the pre-existing >points? > > > >Thanks, > > > >Frederico > > > > > [[alternative HTML version deleted]] > >__ >R-help@r-project.org mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] adding points to a point pattern
Hello all: Is there any way to add points to a point pattern, while keeping a given minimum distance amongst this new points and the pre-existing points? Thanks, Frederico [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] cluster of points
Hello: What I want to do is quite simple, but I can't find a way. I have a data frame with several points (x and y coords). I want to add another column with cluster membership. For example aggregate all the points that stand within a distance of 40 from each other. I've tried using "nncluster" from the package nnclust, but the results are not correct, for some reason (probably my mistake). This is what I did: x <- nncluster(as.matrix(dframe[,1:2]), threshold=35, fill = 1, maxclust = NULL, give.up = 500,verbose=FALSE,start=NULL)#avaliar as clusters Thanks, Frederico [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] C++ and R
Hello: I have some C++ code and I want to know if it is ok to load it into R using .Call. Also, what's the difference between using Rdefines.h or Rinternals.h headers? It is just in the used macros? I've been reading "Writing R Extensions" but I'm a bit confused. Thanks, Frederico [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] RES: Compile C files
Hello: I just reinstalled R and Rtools. It works perfectly now. Thanks, Frederico -Mensagem original- De: Duncan Murdoch [mailto:murdoch.dun...@gmail.com] Enviada em: quarta-feira, 27 de Junho de 2012 01:06 Para: Frederico Mestre Cc: r-help@r-project.org Assunto: Re: [R] Compile C files On 12-06-26 2:48 PM, Frederico Mestre wrote: > Hello: > > > > Sorry, this might look like a beginner question, but I'm just starting > to work on the C and R interface. > > > > I'm trying to compile a C file (with a function) to load it to an R > function but, in the command line I keep getting a lot of errors, like: You'll need to tell us what you did before you can expect us to interpret the error messages. Duncan Murdoch > > > > "C:/Program~1/R/R-215~1.0/include/Rinternals.h:1066:1: error: expected > declaration specifiers before 'SEXP'" > > > > I've been able to compile this file before, so I > > > > I'm using Windows 7 in a 64 bits computer. > > > > Best regards, > > > > Frederico > > > > > [[alternative HTML version deleted]] > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Compile C files
Hello: Sorry, this might look like a beginner question, but I'm just starting to work on the C and R interface. I'm trying to compile a C file (with a function) to load it to an R function but, in the command line I keep getting a lot of errors, like: "C:/Program~1/R/R-215~1.0/include/Rinternals.h:1066:1: error: expected declaration specifiers before 'SEXP'" I've been able to compile this file before, so I I'm using Windows 7 in a 64 bits computer. Best regards, Frederico [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Error: cannot allocate vector of size...
Hello: While running R doing the analysis of my data I (using packages such as BIOMOD or e1071) get the following error as a result of several of my analysis: Error: cannot allocate vector of size 998.5 Mb In addition: Warning messages: 1: In array(c(rep.int(c(1, numeric(n)), n - 1L), 1), d, dn) : Reached total allocation of 4095Mb: see help(memory.size) 2: In array(c(rep.int(c(1, numeric(n)), n - 1L), 1), d, dn) : Reached total allocation of 4095Mb: see help(memory.size) 3: In array(c(rep.int(c(1, numeric(n)), n - 1L), 1), d, dn) : Reached total allocation of 4095Mb: see help(memory.size) 4: In array(c(rep.int(c(1, numeric(n)), n - 1L), 1), d, dn) : Reached total allocation of 4095Mb: see help(memory.size) My question is: I've done the analysis of this same data in the same computer and everything worked out fine. Now I get this error as a result of several analysis. What changed? I'm running R in a 64 bits, Windows 7 , 4 GB of RAM computer. Thanks, Frederico Mestre [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] delete all columns with all values equal to zero
Hello all: I'm sure this is quite simple, but I tried several options and I still can't get I right. I've got a data.frame and I want to delete all columns of which the sum is zero. Any ideas? Thanks, Frederico Mestre [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
