similar to: What this error means

Hi , I want to know is this behavior expected and why is that ? Need some help gender <- c("F", "M", "M", "F", "F", "M", "F", "F") > age <- c(23, 25, 27, 29, 31, 33, 35, 37) > df<- data.frame(gender,age) > typeof(df[[1]]) [1] "integer"

Hi , I have installed R on my system and the user access control looks like this -rwxr-x*---* 1 root root 10578117 Feb 3 11:26 libR.so I have installed R as root , but the access control for other is not enabled by default ( at least Read option) . This can be solved using linux ways, but I am interested to know if there is any way to mention while we run R or install R packages. What I am

Request: An additional hook in plot.new() that is called prior to the call to .Internal(plot.new()). Reason: To allow the hook to set up or modify a graphics device that the new plot will appear in. The code change needed for this is simple - just 4 new lines of R code in src/library/graphics/R/plot.R:plot.new() Current definition of plot.new() in src/library/graphics/R/plot.R: plot.new <-

Hi , Is there any C API to the R API nrow of dataframe ? x<- data.frame() n<- nrow(x) print(n) 0 Example : My C function which deals with data frame looks like and I don't to send the number of rows of data frame .I want to detect it from the function itself, my function take data frame as argument and do some on it. I want API equivalent to nrow. I tried Rf_nrows,Rf_ncols . No

Hi Sanjiv, On Thu, Nov 19, 2009 at 5:07 AM, Sanjiv Gupta <sanjiv.gupta at microchip.com> wrote: > Hi Mikhail, > > I was trying to figure out how to do the following in compiler driver. > > 1.  mcc16 driver has a -p <device_name> option. Now from this device_name I > want to be able to construct a file name like "device_name.o" and pass that > to the

Hi , I am trying to call head function from C . My doubt is with the parameter n,how to pass it . PROTECT(dfm=lang3(install("data.frame"),df,ScalarLogical(FALSE))); SET_TAG(CDDR(dfm), install("stringsAsFactors")) ; SEXP res = PROTECT(eval(dfm,R_GlobalEnv)); PROTECT(head=lang3(install("head"),res,ScalarInteger(1))); head = PROTECT(eval(head,R_GlobalEnv)); I tried

Hi , I am asking too many questions , sorry for that . I am creating a data frame in C itself , reading a table . The data frame calling code looks like this ====================================== *PROTECT(dfm=lang2(install("data.frame"),df));* *SEXP res = PROTECT(eval(dfm,R_GlobalEnv));* UNPROTECT(2); return res; ================================== It works fine , now the problem

Dear List, I've tried to set default par() in .Rprofile by putting the following in the .First function: setHook(packageEvent("graphics", "onLoad"), function(...) {graphics::par(cex.axis=1.5, cex.lab=2, las=1)} ) My goal was to set par() defaults without opening a device everytime at startup. However, the next plot I create doesn't show these

Hola! There is a nuisance that the number of directories with name starting Rtmp (and always empty) in my temp directory is increasing over time. I put the following in my .Rprofile: tmp0001 <- tempdir() setHook( packageEvent("base","onUnload"), function(...) unlink( tmp0001, recursive=TRUE) ) which solves part of the problem, but not all. So there are also

Hi, is there away to assure that a package is detached when R quits? I know about .Last(), but that requires the user to setup that function. What I am looking for is a way for the package to do this itself, without asking the user to edit "their" .Last(). From ?setHook I know that: "...when an R is finished, packages are not detached and namespaces are not unloaded, so

Is there a method with the current tcltk library in R to call back an R function within the .Tcl("...") interpreter? I can't find anything documented, and I don't understand the usefulness of the .Tcl.callback() function. Browsing through the tcltk source code I found two functions R_eval and R_call that seem to take input from the .Tcl interpreter and parse them through the R

The package I'm working on can extract data from external packages but would otherwise have no dependency on them. However, I desire to be able to dispatch based on an external S3 class if its package is attached (.First.lib). My code is S4-based and its package has NAMESPACE. Registering the external class prior to the other package being attached doesn't seem to work so I am attempting

Hi Mikhail, I was trying to figure out how to do the following in compiler driver. 1. mcc16 driver has a -p <device_name> option. Now from this device_name I want to be able to construct a file name like "device_name.o" and pass that to the linker. Unpack_values "p" gives me the device_name, but I do not know how to add ".o" suffix to it. something like:

Hello All, I wanted to convert .html file into .pdf. is there any rails plugin ?? Thanks, Sandip R~ -- Ruby on Rails Developer http://sandip.sosblog.com http://funonrails.wordpress.com www.joshsoftware.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this

You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating nil.<< any ideas ? Application works fine with rails 2.1.0 Sandip -- Ruby on Rails Developer http://funonrails.wordpress.com www.joshsoftware.com http://brandpotion.com (Latest project released) --~--~---------~--~----~------------~-------~--~----~

Hi all, I am using rails v.2.3.2 and if I put following line to my ApplicationController: include LoginSystem and I moved my login_system.rb to lib folder: module LoginSystem protected def is_logged_in? @logged_in_user = User.find(session[:user]) if session[:user] end def logged_in_user return @logged_in_user if is_logged_in? end def logged_in_user=(user) if

consider scenario, User model with name, birth_date fields (here birth_date is not mandatory field) inside view form birth_date is assigned as ''31/31/1985'' which is invalid ideally user object should be invalid and while save raise an error on birth_date field but that''s not happening and user object gets saved with birth_date as blank which is completely misleading.

Hello all I am using acts_as_ferret in user model. Error Message: -------------- ActiveRecord::StatementInvalid: Mysql::Error: Lock wait timeout exceeded; try restarting transaction: UPDATE `users` SET `updated_at` = ''2009-12-28 14:31:50'', `active_till` = ''2009-12-28 14:31:50'' WHERE `id` = 21 Where: ------ calls#audit

Hi, FrameBuffer has the option "fbcon=rotate:1". Could a similar functionality be implemented in the video driver (VBE?) that is used by Syslinux? Is it legal to copy that code from the FBCon portion into the Syslinux video driver portion? If so, where should I start looking? Thanks for all your help. SS On Fri, May 15, 2020 at 7:15 AM Jane Todoroski <jane.todoroski at

I am trying to install Rpy to test it out as an R interface for a project that I am working on. However, I get the following error. Any clues as to what might be going on? I have alo tried RSPython, but I gave up due to errors. RSPython segfaults when started from R and gives an error message I can;t remember from python. Thanks, Brett >>> import rpy Traceback (most recent call