similar to: Scope and apply-type functions

Could someone explain to me what namespaces are loaded/saved when objects are saved? Specifically, I'm using this: save(list = ls(all.names = TRUE, envir = envir), file = name, envir = envir) to save out everything from an environment. Later, loading it on another machine, I'm surprised to see the load failing for being unable to load certain packages. Could anyone help me understand

I was surprised to notice that statements like: h = function(...){list(...)}(x=4) do not throw syntax errors. R claims that 'h' is now a function, but I can't seem to call it. > h = function(x){list(x)}(4) > is(h) [1] "function" "OptionalFunction" "PossibleMethod" > h() Error in list(x) : 'x' is missing > h(4) Error in h(4)

I''m curious if anyone else has a need to disable *convertHTMLLineBreaks*. I actually need to show the <p>''s and <br>''s in the editor and browsing the source code, see that this isn''t configurable. Jamie

Hey folks, I ran into a few people at RubyConf who were having 99% CPU issues. Please contact me if you meet the following criteria: 1. You are running a production site. 2. You are experiencing 99% CPU errors. 3. This is frequent enough that you cannot manage it. Thank you. Please contact me off-list about it. -- Zed A. Shaw, MUDCRAP-CE Master Black Belt Sifu http://www.zedshaw.com/

Folks, i thought it should be straightforward but after a few hours poking around, I decided it's best to post my question on this list. I have a data frame consisting of a (large) number of date columns, which are read in from a csv file as character string. I want to convert them to Date type. Following is an example, where the first column is of integer type, while the rest are type

Hi, There are quiet a few different 'apply' functions, such as lapply, sapply and many more. I'm very familiar with the 'Apply' function in Mathematica. Can somebody point me a summary of all the 'apply' functions in R. Also, I'm curious that what 'l' and 's' (and other prefixes) stand for in 'lapply' and 'sapply' Regards, Peng

Hi, I still have little ability to predict how these functions will treat the columns of data frames: > # Here's a data frame with a column "a" of integers, > # and a column "b" of characters: > df <- data.frame( + a = 1:2, + b = c("a","b") + ) > df a b 1 1 a 2 2 b > > # Except -- both columns are characters: >

For an analysis of data from twins, I'd like to do some rearranging in my dataframe. Currently, each twin has his or her own row. I'd like to add several columns of the co-twin's data to each row. In other words, this is the current situation: FamilyID ParticipantID IQ Digit_span 1 1 95 6 1 2 93 7 2 3 102 8 2

Hi R community, I have a question concerning passing arguments between apply and lapply? Or maybe, once my problem is explained, the question is really about how to best transform my nested for loops into list/matrix operations; I am just beginning this transformation away from nested for loops, so I beg of you to have some lenience regarding my ignorance. Part I: I used a set of nested for

https://bugzilla.samba.org/show_bug.cgi?id=5482 Summary: apply the rsync comparison algorithm specially to .mov and .mp4 files Product: rsync Version: 3.0.2 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P3 Component: core AssignedTo: wayned@samba.org

Hello All, Having some issue with local machine, I need to locate myself on Amazon for running R and Hadoop with Amazon instance. After searching a lot, I can't able to take a decision for choosing Image for Amazon instance. Can any one using R + Hadoop on Amazon. Thanks [[alternative HTML version deleted]]

Hi, I'm trying to implement the DBSCAN algorithm to get O(N*LogN) complexity and I'd need a spatial tree of some sort (kd,r,bd..), or a function that computes radius-based search on spatial data, i.e. given a radius eps finds ALL the points which fall in the corresponding hypersphere centered on the current examined point. Is there a package with this features? So far I found RANN

I need to develop a simple list manipulation. Although it seems easier to do it in matrix form, but I need it in list form. I have a matrix x <- matrix(c(12.1, 3.44, 0.1, 3, 12, 33.1, 1.1, 23), nrow=2) for list form example, the conversion is x.list <- lapply(seq_len(nrow(x)), function(i) x[i,]) ### list version calcnorm=function(a, b){ diff <- mapply("-", a, b)

Dear all, I would like to ask your help understand the subsequent steps for making my program faster. The following code: Gauslist<-array(data=NA,dim=c(dimx,dimy,dimz)) for (i in c(1:dimz)){ print(sprintf('Creating the %d map',i)); Gauslist[,,i]<-f <- GaussRF(x=x, y=y, model=model, grid=TRUE,param=c(mean,variance,nugget,scale,Whit.alpha)) } creates 100 GaussMaps (each

I have tried a lot of ways around this, but I can't find a way to make apply work in a generalized way because it causes a failure whenever reduces the dimensions of its output. The following example is easier to understand than the question. I wish it had a "drop=TRUE/FALSE" option like the "[" (and I wish I had found the drop option a year ago, and I wish that I had 1e6

Hello everyone, A recent (in 2.5 I suspect) change in R is giving me trouble. I want to apply a function (tolower) to all the columns of a data.frame and get a data.frame in return. Currently, on a data.frame, both apply (for arrays) and lapply (for lists) work, but each returns its native class (resp. matrix and list): apply(mydat,2,tolower) # gives a matrix lapply(mydat,tolower) # gives

Hello, I cannot figure out how to shade between two lines in a plot. For example, if I am trying to plot a confidence envelope and I would like to shade the interior of the envelope grey. Is this possible in R? Thanks in advance. Heather Lynch

Hi, First, thank you all for your help. Here is my problem (simplified): Say I have a list: a=list(matrix(50,nrow=5,ncol=5),matrix(25,nrow=5,ncol=5),matrix(10,nrow=5,ncol=5)) I'd like to use rbinom with a different probability for each matrix. I tried: b=c(.8,.1,.9) brep=rep(b,each=25) lapply(a,function(a) rbinom(25,a,brep)) but that doesn't work-- it just uses the first value of b

Up, Any helps in this would be really appreciated. I stuck with this. Regards --- On Mon, 6/13/11, saleh [via R] <ml-node+3593743-1399725529-244676@n4.nabble.com> wrote: From: saleh [via R] <ml-node+3593743-1399725529-244676@n4.nabble.com> Subject: Calling R from Java To: "saleh" <s.alhammed@yahoo.com> Date: Monday, June 13, 2011, 12:35 PM Dear Sir/Madam, Sorry

The above. Jedi Outcast installed, and ran to the startup screen as normal. Movies played at a reasonable speed. However, the main menu was incredibly slow. I tried changing various settings to LOW, without luck. I searched and found something about running it in 24- bit mode instead of 16-bit mode, but that did not help either, because a) there was no 24-bit mode, and b) 32-bit mode was no