similar to: dataframe: how to select an element from a row

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

Dear Researchers, I have a large TXT (X,Y,MyValue) file in a directory and I wish to import row by row the txt in a loop to save only the data they are inside a buffer (using inside.owin of spatstat) and delete the rest. The first step before to create a loop row-by-row is to know how many rows there are in the txt file without load in R to save memory problem. some people know the specific

Hello, I'd like to know how to plot several curves in the same frame (1curve = 1line=1day). For instance (csv file): 2012-02-01 01:00:00; 2100 2012-02-01 02:00:00; 2200 ... 2012-02-01 23:00:00; 2500 2012-02-02 01:00:00; 1000 2012-02-02 02:00:00; 1500 ... 2012-02-02 23:00:00; 1700 Here, I have to plot 2 curves in the same frame: 1 for 2012-02-01 (on the first line) and 1 for 2012-02-02 (on

Hello, I created a data.frame which contains two columns: df$P (Power) et df$DateTime (time). I'd like to add a new column df$diffP (difference of Power between T and T-2). I made a loop : for (i in 3:length(df$DateTime)){ df$diffP[i] = df$P[i] - df$P[i-2] } execution time result is unaceptable: 24s !! Is there any way to reduce complexity about O(n) ? for example 2 or 3s (10s maxi)

Hello, I have got a data frame df like this : > df e1 e2 e3 e4 1 1 11 1 21 2 2 12 2 22 3 3 13 3 23 4 4 14 4 24 5 5 15 5 25 6 6 16 6 26 7 7 17 7 27 8 8 18 8 28 9 9 19 9 29 10 10 20 10 30 where e1 ... e3 are vectors I have to select columns which median is in the interval [5;6] ( Here, for instance, e1 and e3) I would not want to use loop... (for, while) I search

Hi all, I would like to suggest that all R functions/etc like: codes-deprecated grid-internal ns-alt ns-dblcolon ns-hooks ns-internals ns-lowlev ns-reflect.Rd tools-internal ts-defunct utils-deprecated utils-internal ... and another i.e, function/word separate for '-' were all substituted by codes_deprecated grid_internal ns_alt

On 01/15/2010 11:37 AM, Talin wrote: > Yes, that's closer to the frontend semantics: the variants of a > union type don't have any natural ordering, so list semantics could > cause problems. I agree. I probably shouldn't even comment, as I know so little about LLVM. But I've hand-written a couple kLOC of IR now and am starting to get a feel for the

Hello, I have a variable in a data frame that contains NA values. I just want to subset so that I get the obs where that variable is missing. In SAS I would do: data missing; set test; if myvalue=' '; run; How can I perform this simple task in R? Thanks in advance for your help. -- View this message in context:

Hi, I have to debug my program. When I execute my function (in debug mode), I have got an error but I do not know which line is concerned. I do not want to do an infinite "Browse[2]>n with each line in my function... THanks for your help, ikuzar -- View this message in context: http://r.789695.n4.nabble.com/basic-debugging-tp4371113p4371113.html Sent from the R help mailing list

Hi all, I came across an issue in using the Matrix package which made it that I could only subset Matrices using the numeric class, but could not using integers. Steps to reproduce the problem: library(Matrix) # this class has *nothing* to do with Matrix setClass("MyClass", representation(myvalue = "numeric"), prototype(myvalue = NA_real_)) # this class also has

Hi, I 'd like to know how to retrieve a column name of a data frame. For instance : df = data.frame(c1=c('a','b'),c2=c(1,2)) > df c1 c2 1 a 1 2 b 2 I would like to retrieve the column name which value is 2 (here, the column is c2) thanks for your help -- View this message in context:

Hello, RStudio displays errors in french . I'd like to change it in english Please help, Thanks -- View this message in context: http://r.789695.n4.nabble.com/RStudio-how-to-change-language-from-fr-french-to-eng-english-tp4424972p4424972.html Sent from the R help mailing list archive at Nabble.com.

Hi, Does anybody know why get I this kind of strange situation: Browse[2]> hcEnd [1] "2009-03-29 06:30:00" Browse[2]> class(hcEnd) [1] "POSIXlt" "POSIXt" Browse[2]> is.na(hcEnd) [1] TRUE This issue is the source of my all issues in my program, Thanks for your help -- View this message in context:

Hi how can I validate a field only if another field is set to a specific value? I tried to use validates_length_of :fieldname, :maximum => 100, :if => :otherfieldname == ''myvalue'' But doesn''t work Thanks Paolo

Hi everybody, I want to use macro in my R code. But defmacro was not in my libraries. So I installed it : > install.packages("gtools") Installing package(s) into ?C:/Program Files/R/R-2.13.2/library? (as ?lib? is unspecified) essai de l'URL 'http://cran.cict.fr/bin/windows/contrib/2.13/gtools_2.6.2.zip' Content type 'application/zip' length 102500 bytes (100 Kb)

Hello, I am calling the following code with the loop! It makes 3 out graphs but empty! COuld you help me plase on that? Thank you in advance z1 <- dbConnect(MyData, "something", "A1", "A2") for (tt in c("xyz", "abc", "m1")) { message(paste("Here", tt, "!!!")) mydata <- dbReadTable(z1, tt)

Hello everyone, Can you please tell me if it is possible in LLVM to cast a `Value*` to an `Instruction*/LoadInst*` if for example `isa<LoadInst>(MyValue)` is true? In my particular piece of code: Value* V1 = icmpInstrArray[i]->getOperand(0); Value* V2 = icmpInstrArray[i]->getOperand(1); if (isa<LoadInst>(V1) || isa<LoadInst>(V2)){ ...

Hi, I''ve got a problem when using templates in Puppet. In my node declarations, i set (or not) some special variables to activate (or not) some part of my configuration. When i don''t need the configuration part, i don''t declare the variable. I then use something like this in my templates: ... <% if defined? myvar %> ... myvalue = <%= myvar %> ... <%

Hi, I'd like to know if there is an equivalent for #ifdef (Clangage) in R. I 'd like to do something like: useDebug = defmacro(DEBUG, expr=(DEBUG==1)) if(useDebug(0)){ #Here I do not use debug mode make_addition = function(a, b) { c=a+b plot(c) return(c) } }else{ #here I use debug mode c=a+b } I assume this would work... The problem is : if