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17 results for “from:Neal H. Walfield”

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Neal H. Walfield · Mar 15, 2013 · r-help

At Fri, 15 Mar 2013 09:22:15 -0400, Amir wrote: > I have two sets T1={c1,c2,..,cn} and T2={k1,k2,...,kn}. > How can I find the sets as follow: > > (c1,k1), (c1,k2) ...(c1,kn) (c2,k1...

Installing R-2.15.2 in Debian Wheezy/Testing
Neal H. Walfield · Dec 31, 2012 · r-help

At Mon, 31 Dec 2012 15:38:10 -0500, Stephen P. Molnar wrote: > The current version of R that is available in Wheezy is 2.15.1. However, > version 2.15.2 is available at CRAN sites. > ... > My question is...

cut ()
Neal H. Walfield · Dec 31, 2012 · r-help

At Mon, 31 Dec 2012 22:25:25 +0000, Muhuri, Pradip (SAMHSA/CBHSQ) wrote: > The issue is that, for Utah, I am getting an <NA> instead of (42,48.7] in the ob_mrj_cat column. The problem is likely...

%in% with matrix of lists
Neal H. Walfield · Jul 30, 2016 · r-help

On Sat, 30 Jul 2016 20:35:40 +0200, Jeff Newmiller wrote: > > >> [1] TRUE FALSE TRUE FALSE ## NOT c(T,F,T,F) > > > >I'm not sure what you mean by NOT here. You get the same answer as I...

cut ()
Neal H. Walfield · Jan 1, 2013 · r-help

At Tue, 1 Jan 2013 02:00:14 +0000, Muhuri, Pradip (SAMHSA/CBHSQ) wrote: > Although David's solution (putting the right parenthesis, which I had missed) has resolved the issue, I would like to try yours as well. > > Could you...

vectorization & modifying globals in functions
Neal H. Walfield · Dec 27, 2012 · r-help

At Thu, 27 Dec 2012 15:38:08 -0500, Sam Steingold wrote: > so, > 1. is there a way for a function to modify a global variable? Use <<- instead of <-. > 2. how would you vectorize this loop? This is hard. Your...

How to multiple the vector and variables from dataframe
Neal H. Walfield · Dec 30, 2012 · r-help

At Sun, 30 Dec 2012 18:26:45 +0800 (CST), meng wrote: > > hi all: > Here's a dataframe(dat) and a vector(z): > > dat: > x1 x2 x3 > 0.2 1.2 2.5 > 0.5 2 5 > 0.8 3...

parallel error message extraction (in mclapply)?
Neal H. Walfield · Dec 29, 2012 · r-help

Hi, Ivo, At Fri, 28 Dec 2012 16:34:03 -0800, ivo welch wrote: > so, it isn't obvious to me how I get to the try-error object > list, or how to find out what triggered the abort. A...

%in% with matrix of lists
Neal H. Walfield · Jul 30, 2016 · r-help

On Sat, 30 Jul 2016 19:28:42 +0200, Bert Gunter wrote: > Bottom line: No, I dont see any vectorized way to do this. > > However, the following may offer some slight improvement over your approach. > > 1. Why do you need...

%in% with matrix of lists
Neal H. Walfield · Jul 30, 2016 · r-help

I have a matrix of lists. Something along the lists of (but much bigger than): x = array(dim=c(2, 2), data=list()) x[1,1] = list(1:5) x[2,1] = list(6:9) x[1,2] = list(10...

Working with Matrix
Neal H. Walfield · Jan 4, 2013 · r-help

At Fri, 4 Jan 2013 17:17:40 +0530, Christofer Bogaso wrote: > > Hello again, > > Let say I have 2 matrices which equal number of columns but different > number of rows like: > > Mat1 <- matrix(1:20, 4, 5) > Mat2 <- matrix(1...

write.table produces a file that read.table can't read
Neal H. Walfield · Oct 8, 2014 · r-help

Hi, I'm using R version 3.1.1 on Debian via the CRAN repositories. Consider the following MWE that writes a data.frame out to a file and reads it back in (note that one of the strings contains...

detecting if a variable has changed
Neal H. Walfield · Jun 5, 2016 · r-help

Hi, I have a huge list. Normally it is sorted, but I want to be able to add elements to it without having to use any special interfaces and then sort it on demand. My idea is to use something...

group values in classes
Neal H. Walfield · Dec 31, 2012 · r-help

At Mon, 31 Dec 2012 12:13:43 +0200, catalin roibu wrote: > > Dear R users, > I want to group numerical values in classes with different size and count > the values for each classes. > > My data is in this forma: > d...

detecting if a variable has changed
Neal H. Walfield · Jun 5, 2016 · r-help

Hi, This looks more or less what I'm looking for! Thanks! :) Neal On Sun, 05 Jun 2016 18:47:11 +0200, William Dunlap wrote: > > [1 <text/plain; UTF-8 (7bit)>] > [2 <text/html; UTF-8 (quoted-printable)>] > I don...

detecting if a variable has changed
Neal H. Walfield · Jun 5, 2016 · r-help

On Sun, 05 Jun 2016 19:34:38 +0200, Bert Gunter wrote: > This help thread suggested a question to me: > > Is there a function in some package that efficiently (I.e. O(log(n)) ) > inserts a single new element into...

How to multiple the vector and variables from dataframe
Neal H. Walfield · Dec 30, 2012 · r-help

At Sun, 30 Dec 2012 16:28:44 +0000, Andrius Druzinis wrote: > > Hi Neal, > > Notice that c(2, 3) gets replicated into c(2, 3, 2, 3, 2, 3) and then > multiplied by column. This is not the same as...

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