Displaying 20 results from an estimated 900 matches similar to: "windows focus and setting active device"
2003 Apr 02
4
vectorize an expression
Dear listers,
I'm having a bad R day. I just can't think of the vectorized equivalent of:
for (ii in 1:n) aa[ii] = bb[ii,cc[ii]]
Any suggestion received with embarrassment and gratitude
Simon Gatehouse
CSIRO Exploration and Mining,
Newbigin Close off Julius Ave
North Ryde, NSW
Mail: PO Box 136, North Ryde
NSW 1670, Australia
2002 Oct 24
1
Rjava failing to initialize in Windows 2000
Dear Any,
I am trying to initialise Rjava with the objective of running ORCA within R.
I am running R1.5.1 on Windows2000 and get the same problem with Sun
Java run time jre-1.2.2_013
Java j2re-1.4.1_01
Microsoft Java Virtual Machine Build 3805
.JavaInit() is failing at :
.C("s_start_VM", as.character(classPath), as.character(classPath),
2002 Mar 21
1
RGui error on Windows 2000
The following might be of benefit to those who find themselves in a similar
predicament with an apparently corrupted R in Windows 2000.
The problem was traced back to a corrupted register in my user profile in
Windows 2000 apparently caused by a DLL in Visual Basic installation not
self registering correctly.
The fix was to copy a new uncorrupted register from the default user. Though
some of
2002 May 21
1
windows common dialog for color selection in R
Dear R users,
I run R on windows 2000 and windows 98
I am seeking opinion, or better still a code snippet, on what might be the
quickest, not necessarily the best or preferred way, of making the Windows
color selection common dialog available in R. Would it be an executable
called with system() or shell() or perhaps a tcltk module or have I missed
something obvious? I don't believe that I
2001 Jun 25
1
Linking R to GIS
Dear All,
Has anyone worked with linking R to both ArcView and MapInfo GIS systems? My
desire is to capture object selection from GIS and pass to R and to return
spatially based statistical model results from R to GIS. If both could
simultaneously access the same data file this would be a bonus.
My inclination is to put together some routines based on ODBC linking but
thought I would seek like
2003 Jun 03
2
winMenuAdd misbehaving?
Microsoft Windows R users,
I am operating Windows 2000 (build2195) with R1.7. It may be pertinent that
I am using a dual head screen with the initial RGui filing the entire area
of both screens.
When starting R I use the .First() function to add menu items to the RGui
interface using winMenuAdd() and winMenuAddItem(). The menus do not display
until the RGui window is physically manipulated in
2003 Nov 27
2
Getting rid of loops?
I wrote a function to calculate cosine distances between rows of a matrix.
It uses two loops and is slow. Any suggestions to speed this up? Thanks in
advance.
theta.dist <- function(x){
res <- matrix(NA, nrow(x), nrow(x))
for (i in 1:nrow(x)){
for(j in 1:nrow(x)){
if (i > j)
res[i, j] <- res[j, i]
else {
v1 <- x[i,]
v2 <- x[j,]
2002 Mar 19
0
RGui error
R on windows users,
I've noted a similar problem reported before [Rd] Rgui.exe crash on Windows
2000 (PR#912) but could not find the solution.
I have been running R1.4.1 in windows 2000 since the day it was released
with plenty of RAM for my purposes.
In two of my .Rdata files I run TclTk as a menuing system to invoke a series
of functions for plotting statistics etc. On occasions,
2002 Jan 25
2
selecting clusters of points
All:
Are there any functions out there for selecting all the
points in a region of a plot. I envision something like the
identify() function except one could circle a cloud of points (and
perhaps a vector would be returned of the same length as the points
plotted indicating logical membership in the circled cloud). Perhaps
someone has done something with the locator() function that would
2007 Nov 07
2
Adding submenus to existing consol GUI menu
If possible I would like to add two sub-menus to the R Console under
Windows.
For example, I would like to add:
winMenuAddItem("File", "Load CSV...", "loadCSV()")
winMenuAddItem("File", "Save CSV...", "saveCSV()")
and have them appear under the initial 'File' item rather than add a new
'File' menu item. I seem to
2001 Nov 13
4
Floating windows in TCLTK
Dear anybody dealing with TCLTK on R
I'm trying, without any success, to get a simple TCLTK window to remain
floating on top of the RGui and RConsol windows when the later have focus. I
cannot find reference in the TCKTK documentation and fear that I'm missing
something quite fundamental.
My objective is to make a simple button populated menu to invoke R
functions. I wish the TCLTK menu
2011 Nov 23
2
bizarre seq() behavior?
Is there any rational explanation for the bizarre seq() behavior below?
> seq(2,8.1, lenght.out=3)
[1] 2 3 4 5 6 7 8
> help(seq)
> seq(2,8,length.out=3)
[1] 2 5 8
> seq(2,8.1,length.out=3)
[1] 2.00 5.05 8.10
Except maybe that it is early in the morning :)
Best regards,
Ryszard
Ryszard Czerminski
AstraZeneca Pharmaceuticals LP
35 Gatehouse Drive
Waltham, MA 02451
USA
781-839-4304
2012 Jan 10
2
strange Sys.Date() side effect
Any ideas what is the problem with this code?
> N <- 2; c(Sys.Date(), sprintf('N = %d', N))
[1] "2012-01-10" NA
Warning message:
In as.POSIXlt.Date(x) : NAs introduced by coercion
Best regards,
Ryszard
Ryszard Czerminski
AstraZeneca Pharmaceuticals LP
35 Gatehouse Drive
Waltham, MA 02451
USA
781-839-4304
ryszard.czerminski@astrazeneca.com
2005 Feb 01
1
Hugh image created from modest data
Dear R users,
I am running R2.1 on windows XP SP2. I have a problem that I fear I am
providing insufficient information to resolve. But if anyone can suggest
directions to understand the problem I would be most grateful.
I import modest datasets which create a list of data frames (primary data
object) amounting to 15.9Mb when measured internally by object.size() . The
sizes of the list
2012 Jan 12
3
strsplit() does not split on "."?
Any ideas what is wrong?
> strsplit("a.b", ".") # generates empty strings with split="."
[[1]]
[1] "" "" ""
> strsplit("a b", " ") # seems to work fine with split=" ", and other
characters...
[[1]]
[1] "a" "b"
>
> R.Version()
$platform
[1]
2009 Feb 26
2
interpSpline with dates?
Dear R-helpers,
can I use a POSIXct date as the x variable in interpSpline? The help
page says x and y need to be numeric... is there a workaround?
example:
library(splines)
testdfr <- data.frame(Date=seq(as.POSIXct("2008-08-01"),as.POSIXct("2008-09-01"),
length=10))
testdfr$yvar <- rnorm(10)
sp <- interpSpline(yvar ~ Date, testdfr)
preddfr <-
2012 Jun 07
3
conditional statement to replace values in dataframe with NA
Hello and thanks for helping.
#some data
L3 <- LETTERS[1:3]
dat1 <- data.frame(cbind(x=1, y=rep(1:3,2), fac=sample(L3, 6, replace=TRUE)))
#When x==1 and y==1 I want to replace the 1 values with NA
#I can select the rows I want:
dat2<-subset(dat1,x==1 & y==1)
#replace the 1 with NA
dat2$x<-rep(NA,nrow(dat2)
dat2$y<-rep(NA,nrow(dat2)
#select the other rows and rbind
2010 Sep 27
1
smooth contour lines
Is there an easy way to control smoothness of the contour lines?
In the plot I am working on due to the undersampling the contour
lines I am getting are jugged, but it is clear "by eye" these should
be basically straight lines.
In maps package I found smooth.map function, but maybe there is a more
generic way
of accomplishing the same thing.
Ideally there would be an option to control
2012 Jan 25
1
Error in predict.randomForest ... subscript out of bounds with NULL name in X
RF trains fine with X, but fails on prediction
> library(randomForest)
> chirps <-
c(20,16.0,19.8,18.4,17.1,15.5,14.7,17.1,15.4,16.2,15,17.2,16,17,14.1)
> temp <-
c(88.6,71.6,93.3,84.3,80.6,75.2,69.7,82,69.4,83.3,78.6,82.6,80.6,83.5,76
.3)
> X <- cbind(1,chirps)
> rf <- randomForest(X, temp)
> yp <- predict(rf, X)
Error in predict.randomForest(rf, X) : subscript
2009 Aug 19
2
RGoogleDocs/RCurl through proxy
Dear list,
I am trying to use RGoogleDocs, but I am connecting through a proxy server.
I know RCurl is used for the connection, which should be able to deal
with proxies and such.
How do I set this up for RCurl? And can I use those settings with
RGoogleDocs as well?
I have the name of the proxy server and the port number.
(Windows XP).
thanks,
Remko