similar to: how to store package options over sessions?

Displaying 20 results from an estimated 3000 matches similar to: "how to store package options over sessions?"

2010 Nov 19
3
all extended ASCII characters exist for R console output?
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2010 Nov 20
1
Roxygen examples in DONTRUN mode - how?
Dear list, I have just started to use roxygen and cannot find out how to specify NOT RUN examples. I know that to include R code examples works via the @examples tag followed by the code. Without roxygen, if I want R code not to be run when processing the .Rd files I would include the \dontrun tag \examples{\dontrun{ ... some example R code} } How can I achieve this using roxygen? Thanks Mark
2010 Feb 14
3
evaluate variable within expression - how?
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2009 Dec 02
2
Reordering the results from table(cut()) by break argument
I have a vector and need to count how many data points fall inside each bin: dat <- rnorm(100) breaks <- -3:3 table((cut(dat, breaks))) (-3,-2] (-2,-1] (-1,0] (0,1] (1,2] (2,3] 3 13 42 30 12 0 if I reverse the breaks vector, the results remains the same: breaks <- rev(breaks) table((cut(dat, breaks))) (-3,-2] (-2,-1] (-1,0] (0,1] (1,2]
2010 Jan 01
2
changing a list element's name during execution in lapply - possible?
Happy New Year, all! I want to do calculations on each element of a list l, but i want the returned list element to be named differently after the calculation. Is it possible to do the renaming somehow within the lapply call? l <- list(a=NA, b=NA) lapply(l, function(x) {names(x) <- "new name"; return(x) }) This does not work, any ideas? TIA
2009 Dec 27
2
RGtk2 / gWidgets - addHandlerClicked Problem
In The following code, the table handler is executed twice when the button is pressed (from the 2nd pressing on). I want it to be executed only once. Does someone know, why this happens and how I can change it? library(gWidgets) w <- gwindow() b <- gbutton("press", cont=w) tbl <- gtable(1:10, cont=w) addhandlerclicked(b, handler=function(h, ...){
2009 Dec 27
1
gWidgets / RGtk2 - how to change a handler from a toolbar?
I want to assign a default handler to a toolbar button and change the handler later. The addhandlerclicked() method does not apply to a gAction Object, I think... defHandler <- function(h, ...) print("default") w <- gwindow() aTest <- gaction(label="Test", icon="open", handler=defHandler) tblList = list( test = aTest ) toolBar = gtoolbar(tblList,
2010 Jan 08
1
how to flatten a list to the same level?
I have a nested list l like: l <- list(A=c(1,2,3), B=c("a", "b")) l <- list(l,l, list(l,l)) I want the list to be unlisted, but not on the lowest level of each "branch". I want the lowest level of each list branch to remain as it is. So unlist or unlist(rec=F) do not work here as the level of nesting may differ on the elements. The result should look like:
2011 Oct 24
2
splitting a string into words preserving blanks (using regex)
I would like to split a string into words at its blanks but also to preserve all blanks. Example: c(" some words to split ") should become c(" ", "some", " ", " words", " ", "to" , " ", "split", " ") I was not able to achieve this via strsplit() . But I am not familiar with regular
2009 Dec 22
1
RGtk2 - retrieve ggraphics mouse coordinates during drag-and-drop event
Hi all, I have a gtable and a ggraphic widget. I want to drag an element from the table onto the graphic. When the drag object is released over the ggraphic widget, I want the mouse coordinates inside the ggraphic to be returned. Right now I do not know how to get the mouse ccordinates of the ggraphic widget at any given time. How can I access the ggraphics mouse coordinates? Below you find
2010 Mar 11
1
modifying the dots argument - how?
Is there a way to modify the dots-argument? Let's consider I have a function that passes on its ... arguments to another function. For some reason I know, that some elements in ... will cause problems. Can I modify the ... structure somehow, e.g. delete elements? foo <- function(...){ innerFoo <- function(...){ } AT THIS POINT I WANT TO MODIFY THE CONTENT OF ... BEFORE IT IS
2010 Feb 23
1
latent class factor analysis (LCFA) in R?
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2009 Oct 28
1
write to RTF format - possible?
Hi everybody, To write a .txt file I use write.table() Is there a way to write to a .rtf file as well? TIA Mark ??????????????????????????????????????? Mark Heckmann Dipl. Wirt.-Ing. cand. Psych. Vorstra?e 93 B01 28359 Bremen Blog: www.markheckmann.de R-Blog: http://ryouready.wordpress.com
2010 Oct 30
1
overloading "[" and "[<-" using S3 classes
How can I overload the "[" and "[<-" operators using S3 classes? Something like '['.{class} did not work or at least I do not know how to define it properly. For S4 it is straightforward: setMethod("[", signature(x = "myClass", i = "numeric"), function (x, i, j, ..., drop){ ... some operations }) How to do the same for S3? TIA!
2009 Jun 08
3
using regular expressions to retrieve a digit-digit-dot structure from a string
Hi, i need to recognize itemization structures in strings which follow the format: "digit-digit-dot" like e.g. 1. 2. 19. 211. Given the string " This happened in the 21. century." (the dot behind 21 is used in German instead of 21st) I want know where the dots are but I do not want the 21.-dot to be returned as well. I am not good at regular expressions. How
2012 Mar 05
2
no partial matching of argument names after dots argument - why?
I noticed that the argument names after the dots argument are not partially matched. foo <- function(one, two, ...){ one + two } > foo(o=1, t=2) [1] 3 foo <- function(one, ..., two){ one + two } > foo(o=1, t=2) Fehler in one + two : 'two' fehlt Can someone explain me the reason for this behavior? THX Mark ???????????????????????????????????? Mark Heckmann Blog:
2011 Apr 25
4
blank space escape sequence in R?
Is there a blank space escape sequence in R, i.e. something like \sp etc. to produce a blank space? TIA Mark ??????????????????????????????????????? Mark Heckmann Blog: www.markheckmann.de R-Blog: http://ryouready.wordpress.com
2012 Mar 08
3
"figure margins too large" in RGtk2 drawing area as cairo device - why?
When using a gtkDrawingArea as a Cairo device I very often encounter the error: "figure margins too large" Even for the below "getting started" example from http://www.ggobi.org/rgtk2/ this is the case. > win = gtkWindow() > da = gtkDrawingArea() > win$add(da) > asCairoDevice(da) [1] TRUE > plot(1:10) Fehler in plot.new() : Grafikr?nder zu gro? > Also
2012 Mar 05
2
changing the drawing context using Cairo and RGtk2
I am not too familiar with Cairo and RGtk2 and have the following problem: I have a container with two GTK drawing areas converted into Cairo devices. I know that I can set the current drawing context e.g. using dev.set(). But this is tedious. How can I set the context using the objects da1 or da2? w <- gtkWindow() w$setSizeRequest(400, 400) vbox <- gtkVBox() da1 <- gtkDrawingArea()
2011 Dec 22
1
RGtk2: How to overlay a gtkDrawingArea with a button or any other widget?
I try to overlay a plot inside a gtkDrawingArea with a button (or any other widget). I tried to put both into a gtkFixed container. But this does not work, no printing occurs. Does someone know a solution? What I tried: w <- gtkWindow() w$setSizeRequest(400,400) fx <- gtkFixed() da <- gtkDrawingArea() fx$put(da, 100, 100) asCairoDevice(da) par(mar=c(0,0,0,0)) plot(1:10) btn.1