Re: [R] Time complexity of functions in R

Hello Neha, You can try to measure those instructions time-complexiy by yourself. First, generate a benchmark dataset with increasing object size, i.e., set A. Have a look at how to use 'system.time' https://stat.ethz.ch/R-manual/R-devel/library/base/html/system.time.html Best, Mehmet On 24

Re: [R] Comparing figures?

I suggest perceptual diff. You could write a wrapper around it. http://pdiff.sourceforge.net On Mon, 7 May 2018 16:49 Ramiro Barrantes, wrote: > Hello, > > I am working on tests to compare figures. I have been using ImageMagick, > which creates a figure

Re: [R] run r script in r-fiddle

2017 at 15:09, Suzen, Mehmet <msu...@gmail.com> wrote: > On 31 October 2017 at 12:42, Martin Maechler <maech...@stat.math.ethz.ch> > wrote: >> Notably as I think it's been provided by a company that no >> longer exists under that name, and even if that'd be wrong, R-Fiddle

Re: [R] run r script in r-fiddle

On 31 October 2017 at 12:42, Martin Maechler wrote: > Notably as I think it's been provided by a company that no > longer exists under that name, and even if that'd be wrong, R-Fiddle > does not seem free software (apart from the R parts, I hope !). For the record,

Re: [R] run r script in r-fiddle

Note that, looks like r-fiddle runs R 3.1.2. __ 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

Re: [R] run r script in r-fiddle

hler <maech...@stat.math.ethz.ch> wrote: >>>>>> Suzen, Mehmet <msu...@gmail.com> >>>>>> on Mon, 30 Oct 2017 11:16:30 +0100 writes: > > > Hi Frank, You could upload your R source file to a public > > URL, for example to git

Re: [R] run r script in r-fiddle

Hi Frank, You could upload your R source file to a public URL, for example to github and read via RCurl, as source do not support https as far as I know. Here is a working example. library('RCurl') tmatrix <- getURL("https://raw.githubusercontent.com/msuzen/isingLenzMC/master/R/isingUtils.R;)

Re: [R] Regarding Principal Component Analysis result Interpretation

Usually, PCA is used for a large number of features. FactoMineR [1] package provides a couple of examples, check for temperature example. But you may want to consult to basic PCA material as well, I suggest a book from Chris Bishop [2]. [1]

Re: [R] (no subject)

Hello David, As error message says you have a version dependency not satisfied. "error: Need GSL version >= 1.12". If you are using Ubuntu for example you could do; sudo apt-get install libgsl2 Or you can compile by yourself, I am sure there are people in LRZ can help you on this:) Best, Mehmet

Re: [R] comparition of occurrence of multiple variables between two dataframes

; > CV43 > > CV44 > > CV51 > > CV52 > > IN11 > > IN12 > > IN13 > > 4728 > > 0 > > 0 > > 0 > > 1 > > 0 > > 0 > > 0 > > 3 > > 0 > > 0 > > 0 > > 0 > > 0 > > 0 > > 0 &

Re: [R] comparition of occurrence of multiple variables between two dataframes

Do you have a simplified example with a code? It is not clear to me what do you mean by tree but if you refer to tree data structure, maybe you could change the data structure to tree (https://cran.r-project.org/web/packages/data.tree/vignettes/data.tree.html) and try to write comparison of two

Re: [R] Block comment?

AFAIK block comment is not possible it needs to be implemented in R interpreter and defined in the parser.'If' solution is not elegant. On 2 September 2017 at 14:09, Uwe Ligges wrote: > > > On 02.09.2017 11:40, Christian wrote: >> >> I consider it quite worth

Re: [R] Directional Forecast

I suggest, you read: Forecasting: principles and practice from Hyndman-Athana­sopou­los https://www.otexts.org/fpp __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the

Re: [R] Nested cross validation with lapply

Hi Jesús, Do you have a code you tried without lapply? Why don't you post that here too? There are a couple of packages supporting nested CV; TANDEM, blkbox you may want to check their code. Also, `cvTools` package may help you to write one. On 7 August 2017 at 15:21, Jesús Para Fernández

Re: [R] How export data set (available in the package) from R?

I also suggest you Hadley's optimized package for interoperating xls files with R: https://github.com/tidyverse/readxl https://cran.r-project.org/web/packages/readxl/index.html __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see

Re: [R] R package for scorecard development

I suggest you to have a look at this R document: https://cran.r-project.org/doc/contrib/Sharma-CreditScoring.pdf On 28 June 2017 at 13:26, Nikhil Abhyankar wrote: > Hello all, > > Is there any R package that can develop a scorecard model for a binary > target

Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

Hello Chris, I was implying you are capable enough to implement it, while you have already identify a research paper. If there is no package out there, uploading to CRAN would help future user too. I am more than happy to help if you want to implement from scratch. Best, Mehmet On 27 June 2017

Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

Why don't you implement and uplad the package to CRAN? On 27 Jun 2017 17:45, "Chris Buddenhagen" wrote: Does anyone know of some code, and examples that implement game theory/Nash equilibrium hypothesis testing using existing packages like igraph/statnet or similar?

Re: [R] Latin Hypercube Sampling when parameters are defined according to specific probability distributions

No it is an R programming questions. Nelly specifically asked you: "how can I use your code to apply my model to each of the 50 rows of the data frame “tabLHS”?" __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see

Re: [R] (Somewhat?) Off topic: Containerization software

This is a nice summary addressing the same with R: https://arxiv.org/pdf/1410.0846.pdf On 30 May 2017 at 17:43, Bert Gunter wrote: > Folks: > > This is **off topic**, but I thought it might be informative to this > community. Consequently: please **no on list public

Re: [R] Social Network Simulation

Dear Professor Haenlein, Have you solved this issue yet? I found this eally interesting problem I was wondering if it is possible to wrapper "objective function" around igraph's 'sample_pa' and 'sample_smallworld'. If you have an example data set, I can have a look at this. Viele Gruesse aus

Re: [R] lm() funtion

try lm.ridge from MASS package. __ 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,

Re: [R] Multinomial Fitting Distrbution

mixtools package has mixture of Gaussian fitting, maybe that might help? __ 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

Re: [R] Random Forest in Caret

Can you post your memory profile and codes? __ 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

Re: [R] Cost-effectiveness Analysis using R

Yes. __ 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,

Re: [R] any way to write sas7bdat with R

I didn't try this but there is an experimental package from Dr. Shotwell. http://cran.r-project.org/web/packages/sas7bdat/index.html if it can read, maybe you can modify to write as well? __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more,

Re: [R] Cost-effectiveness Analysis in R

Do you have specific example that you have tried to implement in R? Can you post your codes too? There are high quality package BCEA and BayesTree, that could be helpful; http://cran.r-project.org/web/packages/BCEA/index.html http://cran.r-project.org/web/packages/BayesTree/index.html

Re: [R] glmnet: converting coefficients back to original scale

This is interesting, can you post your lm.ridge solution as well? I suspect in glmnet, you need to use model.matrix with intercept, that could be the reason. -m __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see

Re: [R] weighted network centrality measures by network size

Hi Jenny, Have you tried igraph before? See, http://igraph.org/r/doc/ There are couple of centrality measures there. Best, -m On 6 August 2014 02:50, Jenny Jiang jiangyun...@y7mail.com wrote: Dear R-help, My name is Jenny Jiang and I am a Finance Honours research student from the

Re: [R] Using R to analyze multiple MRI studies

Did you inspect the CRAN view for Medical imaging? http://cran.r-project.org/web/views/MedicalImaging.html On 3 July 2014 17:09, moleps islon mole...@gmail.com wrote: I need to analyze multiple T1 contrast enhanced MRI studies from different patients. They are all in DICOM format. I see that

Re: [R] Logistic Regression

You might want to read this vignette: http://cran.r-project.org/web/packages/HSAUR/vignettes/Ch_logistic_regression_glm.pdf On 14 June 2014 19:53, javad bayat j.bayat...@gmail.com wrote: Dear all, I have to use Zelig package for doing logistic regression. How can I use Zelig package for

Re: [R] Defining default method for S3, S4 and R5 classes

There is a nice tutorial on this: http://adv-r.had.co.nz/OO-essentials.html For an in depth guide, have a look at the book from John Chambers, Software for data analysis programming with R. On 13 June 2014 12:20, Luca Cerone luca.cer...@gmail.com wrote: Dear all, I am writing a script

Re: [R] copula fitting

yes you can. On 7 June 2014 16:04, mudit gupta muditf...@gmail.com wrote: Hi guys, can i fit a copula to two marginal distributions with different sample size? like one has 2340 observations and other has 1912. thanks Mudit [[alternative HTML version deleted]]

Re: [R] copula fitting

Have you checked out 'copula' package? On 11 June 2014 00:36, Suzen, Mehmet msu...@gmail.com wrote: yes you can. On 7 June 2014 16:04, mudit gupta muditf...@gmail.com wrote: Hi guys, can i fit a copula to two marginal distributions with different sample size? like one has 2340

Re: [R] How to Optimize two functions together in R

Use defaul values initially, to see if you got reasonable results. See here for the details of nsga2 http://dx.doi.org/10.1109/4235.996017 On 19 May 2014 16:42, Mingxuan Han han...@purdue.edu wrote: I try to use NSGAII function in the mco but I am kind of confusing about the numbers of input

Re: [R] How to Optimize two functions together in R

This deals with the multi-objective optimisation. Try MCO and emoa packages. http://stats.stackexchange.com/questions/77580/optimization-of-multiple-objective-functions-with-constraints On 15 May 2014 17:47, Mingxuan Han han...@purdue.edu wrote: I am trying to minimize two functions with same

Re: [R] Calculating transition probabilties

This looks like this is your homework about Markov chains. not an R question actually. But have a look at the markovchain package from CRAN: http://cran.r-project.org/web/packages/markovchain/vignettes/an_introduction_to_markovchain_package.pdf On 13 May 2014 16:49, Baba Bukar bbu...@nda.edu.ng

Re: [R] problem in r-code

Wrong list. This is an R list not Bugs. You may want to consult Bugs materials: http://www2.mrc-bsu.cam.ac.uk/bugs/weblinks/webresource.shtml On 8 May 2014 11:36, thanoon younis thanoon.youni...@gmail.com wrote: dear all members is there anyone explain to me the code below and how can i

Re: [R] How can I make this nested loop faster?

Your code is not re-producable. Can you provide a working example using a standard dataset from R? But, you could first try to use compiler package, see ?enableJIT. Another option would be to use doMC/foreach packages if you can run your assignment in the nested loop in parallel, see %dopar%. On

Re: [R] uniform number

WTF? Is that a R package from you? On 5 May 2014 09:27, Rolf Turner r.tur...@auckland.ac.nz wrote: On 05/05/14 17:05, Ragia Ibrahim wrote: Dear group, How to generate uniform probability choosing p to be 2% and 5%, in separate trials for 100 times. No idea WTF you are talking about.

Re: [R] uniform number

That paper you cite is about Social networks. You may want to use igraph or sna packages On 5 May 2014 10:54, Ragia Ibrahim ragi...@hotmail.com wrote: thanks for replying in the following paper http://www.cs.cornell.edu/home/kleinber/kdd03-inf.pdf page 6 third paragraph the author

Re: [R] inverse normal distribution function

You may want to read about generalized linear modelling and link functions for forming appropriate categorical variable/link function. See documentations in R: ?glm, ?family and ?inverse.gaussian. Also look at the original paper of Nelder, John; Wedderburn, Robert , it is available freely with

Re: [R] inverse normal distribution function

Not sure how would you do that but there is a package SEM on CRAN for structural equation models. On 20 April 2014 01:10, thanoon younis thanoon.youni...@gmail.com wrote: thank you so much Suzen i want to use bayesian analysis in structural equation models with ordered categorical data and i

Re: [R] operating website through R

This looks not so elegant, while normally data provider must have a nice accessing API, anyway, for example you can do this: myAdd -

Re: [R] operating website through R

You just need to pass the parameters on Giovanni_cgi.pl with action=ASCII+Output On 11 April 2014 17:19, eliza botto eliza_bo...@hotmail.com wrote: Dear Users of R, I wanted to operate certain slots of this website (http://disc2.nascom.nasa.gov/Giovanni/tovas/TRMM_V7.3B42_daily.2.shtml)

Re: [R] Sampling according to type

If I understood correctly, you need weighted sampling. Try 'prob' argument from 'sample'. For your example: n - 10 ntype - rbinom(n, 1, 0.5) myProbs - rep(1/10, 10) # equally likely myProbs[ which(ntype == 0)] - 0.75/7 # Divide so the sum will be 1.0 myProbs[ which(ntype == 1)] - 0.25/3

Re: [R] Sampling according to type

myProbs[ which(ntype == 0)] - 0.75/7 # Divide so the sum will be 1.0 myProbs[ which(ntype == 1)] - 0.25/3 Here of course you need to divide by number of 0s and 1s, 7 and 3 were was just an example. __ R-help@r-project.org mailing list

Re: [R] Shortest connected path in a matrix

You may want to check bioconductor packages doing graph algorithms. Maybe this one: http://www.bioconductor.org/packages/release/bioc/manuals/RBGL/man/RBGL.pdf See for example ?dijkstra.sp On 5 March 2014 18:44, McCloskey, Bryan bmcclos...@usgs.gov wrote: Here is some example data (hopefully

Re: [R] Season's Greetings (and great news ... )!

I wouldn't blame R for floating-point arithmetic and our personal feeling of what 'zero' should be. options(digits=20) pi [1] 3.141592653589793116 sqrt(pi)^2 [1] 3.1415926535897926719 (pi - sqrt(pi)^2) 1e-15 [1] TRUE There was a similar post before, for example see:

Re: [R] Functional Programming patterns

Have you checked the r.lambda package of Brian Lee Yung Rowe ? http://cran.r-project.org/web/packages/lambda.r/index.html On 20 November 2013 10:02, mohan.radhakrish...@polarisft.com wrote: Hi, ' Not specific to 'R'. I search for patterns and found http://patternsinfp.wordpress.com/ which

Re: [R] Sending a matrix in an email

On 18 November 2013 05:37, Ira Fuchs irafu...@gmail.com wrote: I have a matrix which has colnames and I would like to send this matrix using sendmailR. How can I convert this simple matrix My 1 cent; In case of large objects or full session, suitable for attachment; RData might be more

Re: [R] Fitting arbitrary curve to 1D data with error bars

question has nothing to do with drawing error bars on a plot. What I want is to do a curve fit to a data with error bars. Best, e. On 14 Nov 2013, at 04:21, Suzen, Mehmet wrote: If you are after adding error bars in a scatter plot; one example is given below : #some example data

Re: [R] Fitting arbitrary curve to 1D data with error bars

If you are after adding error bars in a scatter plot; one example is given below : #some example data set.seed(42) df - data.frame(x = rep(1:10,each=5), y = rnorm(50)) #calculate mean, min and max for each x-value library(plyr) df2 - ddply(df,.(x),function(df)

Re: [R] computation of hessian matrix

On 1 November 2013 11:06, IZHAK shabsogh ishaqb...@yahoo.com wrote: below is a code to compute hessian matrix , which i need to generate 29 number of different matrices for example first You may consider using Numerical Derivatives package for that instead, see:

Re: [R] Revo R for Arima Implementation

On 28 October 2013 14:26, Anindita Chattopadhyay anindit...@mu-sigma.com wrote: We need to understand how we can implement this in Revo R. Most of the people here contribute to community of R not Revo R. I think it is unfair of you to request from this list to solve your Revo R issue.

Re: [R] Incorporate Julia into R

On 17 October 2013 15:38, Timo Schmid timo_sch...@hotmail.com wrote: I have some code in R with a lot of matrix multiplication and inverting. R can be very slow for larger matrices like 5000x5000. I have seen the new programming language Julia (www.julialang.org) which is quite fast in doing

Re: [R] RStudio with Revolution-R

On 15 October 2013 01:27, Maxim Linchits mlinch...@gmail.com wrote: Hello, Is it possible to use Revolution-R's multithreading capability with RStudio as the IDE? Apparently, RevoR is available for Ubuntu, Wrong list! But for reference:

Re: [R] Image Classification in R

Hello Lorenzo, Try to locate related R packages from here: http://cran.r-project.org/web/views/MedicalImaging.html On 14 October 2013 22:23, Lorenzo Isella lorenzo.ise...@gmail.com wrote: Dear All, For a project I am given a set of images. They represent either healthy or tumoral tissue, but

Re: [R] DEoptim inconsistent output

On 29 September 2013 19:17, Aya Anas aa...@feps.edu.eg wrote: doesn't make sense at all. I got parameters that don't satisfy the constraint. In addition, when i substituted with the resulting parameters Maybe you have issues with your interpretation of the usage of the package and expected

Re: [R] Why does sin(pi) not return 0?

On 26 September 2013 11:30, Rainer M Krug rai...@krugs.de wrote: Why doesn't return me 0? It isn't R question at all. You might want to read about representing real numbers in a computer using floating point http://en.wikipedia.org/wiki/Floating_point If you want more precision for some reason,

Re: [R] Validating data type

R is weakly typed language. I have asked similar question previously: http://r.789695.n4.nabble.com/count-appearence-of-zero-in-a-vector-td4654591.html It is advised to me to use S4 classes, if you want to enforce type checking automatically. Excellent reference on this is by the ACM award

Re: [R] Summation sign

Hello Sebastian, I think you may need to use tensorA package. You can define different indices and use Einstein or Reimann summation convention. Grüße, Mehmet On 23 August 2013 15:14, Sebastian Hersberger sebastian.hersber...@unibas.ch wrote: Hi all I have a short question relating to the

Re: [R] Optimization of a function using optim

Dear Graham, On 16 June 2013 02:08, Graham McDannel graham.mcdan...@gmail.com wrote: I am attempting to optimize a function I have developed using optim. I am getting the below error message: Error in n 1: 'n' is missing I suspect a function requires an argument named n, and you didn't

Re: [R] How to use character in C code?

You may want to use C++ instead using Rcpp which string handling would be easier: http://gallery.rcpp.org/articles/strings_with_rcpp/ On 10 May 2013 15:51, cgenolin cgeno...@u-paris10.fr wrote: Hi the list, I include some C code in a R function using .C. The argument is a character. I find

Re: [R] rpy2 (Python -- R)

Wrong list. You may want to ask here: http://rpy.sourceforge.net/maillist.html But looking at your output it looks like you need to install readline library sources or be sure that it is in the CFLAGS's -I On 10 February 2013 06:06, James Jong ribonucle...@gmail.com wrote: Hi - I am having

Re: [R] Modifying Package Data

You can use system.file to fine the package root, then data file path relative to this. For example system.file(package = stats) # The root of package 'stats' See ?system.file On 6 February 2013 22:02, David Winsemius dwinsem...@comcast.net wrote: On Feb 4, 2013, at 11:37 AM, Rich Shepard

Re: [R] Can I define a object array in R?

Hello Sarah, You may want to use a package instead of trying to implement those data structures. For example: http://www.bioconductor.org/packages/release/bioc/html/graph.html Best, -m On 29 January 2013 11:22, Sarah Goslee sarah.gos...@gmail.com wrote: In R, lists are used for that. See ?list

Re: [R] Pass vector as multiple parameters (as in python f(*x))

This an alternating way of doing it using a list if you know the argument names in the function definition i.e. ?formals and ?alist, But would change the default values of the function. Probably not you wanted. f - function(x,y,z) x+y+z args-alist(x=5,y=6,z=7) formals(f) - args f() [1] 18

Re: [R] Recommendation for website to format R code

Probably formatR/knitr is more robust but this one has an option for S http://hilite.me/ -m On 25 January 2013 02:37, C W tmrs...@gmail.com wrote: I ran across this page for C, Java, etc. No R. http://pastebin.com/ It looks similar and more than what I was looking for, just saying. Mike

Re: [R] joint probability distribution

Not sure what is your exact requirement but you can compute marginals and conditional probabilities using 'prob' package of Prof. Kerns. On 25 January 2013 22:15, Rui Barradas ruipbarra...@sapo.pt wrote: Hello, You need to be much more specific. What do you know about the distributions of X

Re: [R] How to change R file in stats?

On 17 January 2013 07:03, Ibrahim Sobh im_s...@hotmail.com wrote: Dear I have changed some code in R file inside the stats package (dendrogram.R). Now I wan to test and run the stats package with the new updated code, what should I do in detail? For testing the simplest thing you can do

Re: [R] ginv / LAPACK-SVD causes R to segfault on a large matrix.

On 14 January 2013 15:08, Cyrus Shaoul cyrus.sha...@uni-tuebingen.de wrote: La.svd Dear Cyrus, Have you tried running La.svd ; LAPACK only version (without R) via C/C++ or Fortran code? After all it can be a LAPACK issue and R-team has no control on that. Best, -m

Re: [R] readJPEG function cannot open jpeg files

Similar issue with URLs: yesWeCan - http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg; url(yesWeCan) description http://upload.wikimedia.org/wikipedia/commons/9/9d/Barack_Obama.jpg;

Re: [R] readJPEG function cannot open jpeg files

On 14 January 2013 18:56, Prof Brian Ripley rip...@stats.ox.ac.uk wrote: On 14/01/2013 16:26, Suzen, Mehmet wrote: Similar issue with URLs: Not a similar issue at all: a URL is not a file. That most functions in R itself open connections including URLs does not mean that contributed

Re: [R] how to count A, C, T, G in each row in a big data.frame?

On 10 January 2013 01:04, Yao He yao.h.1...@gmail.com wrote: In fact I want to calculate the gene frequency of each SNP. Why don't you use bioconductor for your analysis instead of trying to develop by your own? For example:

Re: [R] Find the functional relationship between two variables in R?

On 10 January 2013 15:04, jt...@mappi.helsinki.fi wrote: Hi, I have two variables x and y and the functional relationship between x and y is like: y=x^2+log(x). My question is that is it possible to apply some method to reconstruct the functional form based on the training data that is

Re: [R] R encrypt/decrypt

On 9 January 2013 18:59, Ramiro Barrantes ram...@precisionbioassay.com wrote: I am working on a web system (php) that uses R in the backend, and we need some basic fast encryption/decryption for the underlying mysql database that can be used by both R AND php. It does not need to be

Re: [R] R encrypt/decrypt

has a counterpart on php or has suggestions about the situation. Sorry for the confusion in my question. Thank you, Ramiro From: mehmet.su...@gmail.com [mehmet.su...@gmail.com] on behalf of Suzen, Mehmet [msu...@gmail.com] Sent: Wednesday

Re: [R] Manhattan Plot

Hello Einat, Have you tried ggbio package's plotGrandLinear from bioconductor? Best, -m On 8 January 2013 20:03, Einat Granot einatgra...@gmail.com wrote: Hello, I am trying to create a simple Manhattan plot for a small list of 200 SNPs spread out in the genome in different genes. I have

Re: [R] MT940 and MT942

On 5 January 2013 10:04, peter dalgaard pda...@gmail.com wrote: So it looks like some assembly is required, but puzzle pieces are available. Concerning MT940 spec, I don't know who is regulating this. There is no RFC or similar. The closest thing I found was from DB:

Re: [R] Working with Matrix

Hello Rui/Jorge, This is shorter, and probably needs less memory for large matrices as you create an other copy by defining nas: matrixOp - function(m1, m2, op=`+`) { rows - min(nrow(m1), nrow(m2)) cols - ncol(m1) op(m1[1:rows, 1:cols], m2[1:rows, 1:cols]) } Best, mem On 4 January 2013

Re: [R] count appearence of zero in a vector

$double.xmin)) #[1] 6 A.K. - Original Message - From: Suzen, Mehmet msu...@gmail.com To: Hermann Norpois hnorp...@googlemail.com Cc: R help r-help@r-project.org Sent: Friday, January 4, 2013 12:27 AM Subject: Re: [R] count appearence of zero in a vector Hi Hermann, You may want

Re: [R] non-consing count

My 2 cents: AFAIK both which and length are from C compiled code: http://cran.r-project.org/doc/manuals/r-release/R-ints.html#g_t_002eInternal-vs-_002ePrimitive so they must be quite efficient ie .Primitive and .Internal. Probably combination of this with a pattern in C would be more memory

Re: [R] Integrating Java, C++ and R

On 4 January 2013 11:36, Royden Fernandes roydens...@gmail.com wrote: Hi, I am able to integrate C++ and R through RInside library. However when I Questions regarding RInside should go to the rcpp-devel mailing list. http://lists.r-forge.r-project.org/mailman/listinfo/rcpp-devel

Re: [R] non-consing count

On 4 January 2013 16:53, jim holtman jholt...@gmail.com wrote: Is performance a concern? How often are you going to do it and what other parts of your script also take longer? Why are you concerned about allocating/discarding two vectors? I think Sam's question was about additional memory

Re: [R] count appearence of zero in a vector

On 4 January 2013 17:47, Bert Gunter gunter.ber...@gene.com wrote: Inline. On Fri, Jan 4, 2013 at 7:44 AM, Suzen, Mehmet msu...@gmail.com wrote: I am always reserved about types and not sure how R auto casting works internally. In a large code using many different packages, I think being

Re: [R] count appearence of zero in a vector

Hi Hermann, You may want to use ?which, to store the index as well (might be handy in debugging or some other purposes if zeros has some special meaning) : test - c(1, 1, 1 , 1 , 1, 1, 2, 1, 1, 1, 0, 2, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 2, 1, 1, 1, 1, 1, 1) length(which(test==0)) But be careful

[R] MT940 and MT942

Hello List, Are there any R package that can process MT940/942? Thanks mem __ 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

Re: [R] suggestions about import SAS results to R.

On Jan 2, 2013, at 12:37 PM, Yuan, Rebecca wrote: I am wondering if there is an efficient way to read SAS data directly in R, or what would be a better connection between SAS and R if I need to use R to deal with data achieved from SAS? You may try foreign and SASxport packages:

Re: [R] efficiently multiply different matrices in 3-d array with different vectors?

On 30 December 2012 20:21, arun smartpink...@yahoo.com wrote: HI, I was not aware of the algebraic relationship. Tx for the explanation. For the record; the simple example I have shown can be reproduced with Einstein's summation rule as well. While A and x tensors have covariant (lower)

Re: [R] efficiently multiply different matrices in 3-d array with different vectors?

On 29 December 2012 20:35, arun smartpink...@yahoo.com wrote: Is it possible to obtain the same result as X without converting X to R? What do you mean by the same result? There is a relationship between X and R. If you express this relationship algebraically, you can get X directly using Y and

Re: [R] efficiently multiply different matrices in 3-d array with different vectors?

What I had in mind was a tensor multiplication. I think, using tensor arithmetic for multidimensional arrays looks more compacts and efficient (~ 2-3 times). I am guessing that performance will be much more pronounced for n-D arrays (n3). # Component Wise set.seed(14)

Re: [R] Is there a package to output midi files for sonification of data

On 27 December 2012 08:46, Greg Hooper gregstuarthoo...@gmail.com wrote: thanks Ben - hmm I think I will use a midi/csv utility http://www.fourmilab.ch/webtools/midicsv/ and see how that goes. Another Hi Greg, Yes you are right, It is for wav analysis but as Ben suggests. Conversion should not

Re: [R] Is there a package to output midi files for sonification of data

On 27 December 2012 08:46, Greg Hooper gregstuarthoo...@gmail.com wrote: thanks Ben - hmm I think I will use a midi/csv utility http://www.fourmilab.ch/webtools/midicsv/ and see how that goes. Another Hi Greg, Yes you are right, It is for wav analysis but as Ben suggests. Conversion should not

Re: [R] Is there a package to output midi files for sonification of data

On 27 December 2012 21:23, Ben Bolker bbol...@gmail.com wrote: On 12-12-27 03:04 PM, Greg Hooper wrote: it more closely into R I would take the C code and figure out how I could integrate it into an R package as compiled code with a thin R wrapper around it. Since the code license is public

Re: [R] vectorization modifying globals in functions

You can use environments. Have a look at this this discussion. http://stackoverflow.com/questions/7439110/what-is-the-difference-between-parent-frame-and-parent-env-in-r-how-do-they On 27 December 2012 21:38, Sam Steingold s...@gnu.org wrote: I have the following code: --8---cut

Re: [R] efficiently multiply different matrices in 3-d array with different vectors?

I think what you are doing is a tensor algebra. You may want to try tensorA: http://cran.r-project.org/web/packages/tensorA/index.html On 28 December 2012 06:33, Ranjan Maitra maitra.mbox.igno...@inbox.com wrote: Any pointers on an efficient way of doing this? I considered using apply, but was

Re: [R] R graphs from database

Hi David, I suggest you to have a look at packages that can extract data from sql or nosql databases and graphics. CRAN task views would help: http://cran.r-project.org/web/views/Graphics.html The point is there are lots of alternatives. If you would like to use web-based visualisation d3 is

Re: [R] Is there a package to output midi files for sonification of data

Hi Greg, you can try tuneR : http://cran.r-project.org/web/packages/tuneR/ Best, -m On 26 December 2012 22:04, Greg Hooper gregstuarthoo...@gmail.com wrote: Hi, I have been using Matlab to produce midi files for sonfication and algorithmic composition projects. I would like to transfer that

Re: [R] R and Matlab

Simplest way is the call a system command, using R CMD. See :http://stackoverflow.com/questions/6695105/call-r-scripts-in-matlab But there are more complicated solutions are proposed: http://www.mathworks.co.uk/matlabcentral/fileexchange/5051 This is uses R-(D)-COM In my opinion most robust

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