similar to: Solving graph theory problems with R ? (minimum vertex cover)

Displaying 20 results from an estimated 6000 matches similar to: "Solving graph theory problems with R ? (minimum vertex cover)"

2010 Jan 14
0
Is it possible to create the genetic code circle graph ?
Hello dear R help group, Can any one suggest me of a way of making this: http://portal.techhigh.us/Teachers/lauritsenk/PublishingImages/genetic%20code.jpg Using R ? Thanks! Tal <http://portal.techhigh.us/Teachers/lauritsenk/PublishingImages/genetic%20code.jpg> ----------------Contact Details:------------------------------------------------------- Contact me: Tal.Galili@gmail.com |
2009 Nov 18
2
Importing tRNA data into R ?
Hello dear R help group, I would like to download the tRNA data on: http://gtrnadb.ucsc.edu/download.html And then import it into R. Can anyone direct me as to how to do so? Thanks, Tal ---------------------------------------------- My contact information: Tal Galili E-mail: Tal.Galili@gmail.com Phone number: 972-52-7275845 FaceBook: Tal Galili My Blogs: http://www.talgalili.com (Web and
2015 Mar 19
3
CRAN binary, but no source
Hi All, this is a CRAN question, so I am sorry if this is not the appropriate forum. I noticed that there is at least one CRAN package that has a binary (OSX Mavericks) for a version, that does not have any source package on CRAN. Or at least I am unable to locate it. The package is Rglpk: http://cran.r-project.org/web/packages/Rglpk/index.html It offers a binary for 0.5-2, but there is no
2010 Dec 07
1
Encoding problem - I fails to read Hebrew text from online
Hello all, # I am trying to read the text in this URL: u <- http://google.com/complete/search?output=toolbar&q=%d7%a9%d7%9c%d7%95%d7%9d # By using this command: readLines(u) And no matter what variation I tried, I keep getting this output: [1] "<?xml version=\"1.0\"?><toplevel><CompleteSuggestion><suggestion
2012 Jan 30
1
Getting htmlParse to work with Hebrew? (on windows)
Hello dear R-help mailing list. I wish to be able to have htmlParse work well with Hebrew, but it keeps to scramble the Hebrew text in pages I feed into it. For example: # why can't I parse the Hebrew correctly? library(RCurl) library(XML) u = "http://humus101.com/?p=2737" a = getURL(u) a # Here - the hebrew is fine. a2 <- htmlParse(a) a2 # Here it is a mess... None of
2011 Nov 20
0
Adding a "description" meta-tag to the R homepage (bump)
Hello dear R-devel, I am allowing myself to bump this issue again (half a year later) - I think that the www.r-project.org website could benefit from having a description meta-tag. Could anyone please let me know who to contact regarding this? With much respect, Tal On Sat, Apr 2, 2011 at 4:24 PM, Tal Galili <tal.galili@gmail.com> wrote: > Hello Peter, > > Here is what google
2010 Dec 10
1
Consistency of variable storage in R and Sys.setlocale (is this a feature or bug)?
<I was not sure if this should go to R-devel or R-help. If I e-mailed this to the wrong place, please let me know.> Hello dear R-devel members, I came by an oddity, with regards to how character variables are being transformed when they are in Hebrew, and when Sys.setlocale is changed. Here is an example: # first, let's set the locale to Hebrew Sys.setlocale("LC_ALL",
2009 Nov 06
0
Plotting with "Hebrew" text
Hello all, I imported a txt file with Hebrew column names, and wish to use them for my plots. I found that the Hebrew text is jumbled (Example: .áéèçåï.òöîé.) How do I fix it so to be able to see the characters in a correct way ? Thanks, Tal ---------------------------------------------- My contact information: Tal Galili E-mail: Tal.Galili@gmail.com Phone number: 972-52-7275845
2010 May 22
2
Capturing R console output into a file (sink+savehistory ??)
After reading more, I understand I didn't formulate my last question correctly, so please allow me to rephrase: What I am looking for is a way to save the R console session output. That is, a command that would combine the results of using: ?sink # And ?savehistory My motivation for this is that doing it will allow someone who is a blind user of R to be able to easily export his results to
2010 Nov 25
3
Is there an implementation for "URL Encoding" (/format) in R?
Hello all, I would like some R function that can translate a string to a "URL encoding" (see here: http://www.w3schools.com/tags/ref_urlencode.asp) Is it implemented? (I wasn't able to find any reference to it) Thanks, Tal ----------------Contact Details:------------------------------------------------------- Contact me: Tal.Galili@gmail.com | 972-52-7275845 Read me:
2015 Mar 19
2
CRAN binary, but no source
----- Original Message ----- > From: "G?bor Cs?rdi" <csardi.gabor at gmail.com> > To: "John McKown" <john.archie.mckown at gmail.com> > Cc: r-devel at r-project.org > Sent: Thursday, March 19, 2015 9:03:37 AM > Subject: Re: [Rd] CRAN binary, but no source > > On Thu, Mar 19, 2015 at 11:59 AM, John McKown > <john.archie.mckown at
2009 Oct 14
2
Scatter plot using icons (from a gif) instaed of points - is it possible ?
Hello dear R-help group. I wish to plot a scatter plot using icons (or images) instead of points. Is it possible? and how so? Thanks, Tal ---------------------------------------------- My contact information: Tal Galili E-mail: Tal.Galili@gmail.com Phone number: 972-52-7275845 FaceBook: Tal Galili My Blogs: http://www.talgalili.com (Web and general, Hebrew) http://www.biostatistics.co.il
2012 Feb 03
2
Is the link to the R wiki down?
I am getting a 404 page for this: http://wiki.r-project.org/ I was not sure who to write this to - so I am writing it here. Best, Tal ----------------Contact Details:------------------------------------------------------- Contact me: Tal.Galili@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English)
2010 Apr 26
1
Why am I getting different results from cor VS ccf ?
Hi all, I am getting different results from ccf and cor, Here is a simple example: set.seed(100) N <- 100 x1 <- sample(N) x2 <- x1 + rnorm(N,0,5) ccf(x1,x2)$acf[ccf(x1,x2)$lag == -1] cor(x1[-N], x2[-1]) Results: > ccf(x1,x2)$acf[ccf(x1,x2)$lag == -1] [1] -0.128027 > cor(x1[-N], x2[-1]) [1] -0.1301427 Thanks, Tal ----------------Contact
2010 Nov 20
1
Where can I find a working libeay32.dll file for RCurl ?
Hi all, I was trying to run the latest version of RCurl on windows 7 with R 2.12 and got a "missing libeay32.dll" error. I now downloaded such a file from here: http://code.google.com/p/aion-inside/source/browse/trunk/out/libeay32.dll?spec=svn10&r=10 And placed it in the system32 folder. Now I get the following error: "The procedure entry point EVP_md2 could not be located in
2011 Sep 20
2
The CRAN packages webpages are not found
I am not sure who to send this to - so I am writing this here. It seems that the "index.html" pages on CRAN are gone. For example: http://cran.r-project.org/web/packages/ggplot2/index.html Is gone. But the directory is accessible: http://cran.r-project.org/web/packages/ggplot2/ Who should this be forwarded to? Cheers, Tal ----------------Contact
2011 Jan 26
2
Extracting the terms from an rpart object
Hello all, I wish to extract the terms from an rpart object. Specifically, I would like to be able to know what is the response variable (so I could do some manipulation on it). But in general, such a method for rpart will also need to handle a "." case (see fit2) Here are two simple examples: fit1 <- rpart(Kyphosis ~ Age + Number + Start, data=kyphosis) fit1$call fit2 <-
2009 Dec 07
2
Are there free R webinar recordings somewhere ?
Hi all, A friend just sent me this: http://www.mathworks.com/company/events/webinars/index.html?id=&language=en <http://www.mathworks.com/company/events/webinars/index.html?id=&language=en>And asked me if there is something of the like in the R community. Does anyone know of such a think ? Cheers, Tal ----------------Contact
2011 Apr 18
2
Windows 7, update.packages problem: "unable to move temporary installation"?
Hello all, I am using R 2.13.0 with windows 7, after giving my user full privileges to the R folder (as described here<http://www.r-statistics.com/2011/04/how-to-upgrade-r-on-windows-7/> ). This allows me to install new packages just fine. However, when using update.packages(), to update existing packages, I keep getting the following error (for example, when updating the MASS package):
2010 Jul 02
2
Why doesn't my change of "Renviron.site" work on "windows 7" ?
Hi all, I added the following line on the "Renviron.site" file: R_LIBS=C:\Program Files (x86)\R\library And when I start R and run: .libPaths() I don't see this path. On windows XP it worked for me. I am now using windoes 7 (64 bit) with R 32. Is there a reason this shouldn't work? Thanks, Tal ----------------Contact