similar to: Creating missing values.

Displaying 20 results from an estimated 2000 matches similar to: "Creating missing values."

2003 May 17
1
Windows binary corrupt
I've tried to download the Windows 1.7.0 binary from three different mirrors today. Each time the binary comes down corrupt - MD 5 sums don't check and the installer reports that its own setup files are corrupt. Since I've tried from different computers and different connections, I have to assume a problem downstream from me. Has anyone else reported this problem? Has the binary
2002 Mar 23
1
Normal behavior or bug?
>selectiris<-sample(1:5, 150, replace=T) > hist(selectiris, plot=TRUE) #freq=TRUE, breaks=5, etc all do the same thing >truehist(selectiris) Is the behavior of "hist" in this sample of code correct. On my system (Windows 2K, SP2) the first and second bars are pushed together, while the 3rd, 4th, and 5th bars are correctly positioned. The function "truehist"
2000 May 02
1
Graph superimposition
I'm running a four-group, 15-variable discriminant analysis using the MASS function lda(). Discriminant functions 1 and 2 explain about 93% of the variance. I would like to plot the group scatters in a single scatterplot, identify each group's centroid, and encircle the group scatter with a 90% bivariate confidence ellipse. I can do this for each group on a separate plot, but I
2000 Mar 08
1
Coercing character to factor
I just downloaded version 1.0.0 and several binary libraries (VR, rpart, norm, stataread) - WinNT version. I then converted a file from Stata 6.0 to R format by using the stataread library. The file converts perfectly and I was able to use the VR function lda on the dataframe without difficulty. I then tried to use the same dataframe with RPART. The model statement:
2000 Dec 18
0
Rwinst.exe 1.2.0 problems
I just downloaded the binaries for the released 1.2.0 for Windows (from Guido Masarotti's site). In using the rwinst.exe installer, I noted two significant problems. First, the installer seems extraordinarily slow compared to the the 1.1.1 installer. It took almost 20 minutes to perform a full base extraction from binaries to installation (all base pages, html help, windows help, pdf
2000 Sep 12
0
Alternative to Notepad
My earlier message was not as clear as it could have been. I already have Emacs for my NT system, but prefer not to use it or vi. It is really a case of not needing a sledgehammer to swat a gnat. The advantage of EditPadPro (for me anyway) is that it has a footprint of 1MB including helpfiles, whereas the versions of Emacs I've seen for NT require about 30MB of disk space to store.
2000 Sep 13
0
Cleaning up part 2.
Thanks to those who suggested I use make clean. I *had* done that before asking the question, but it would never run. I kept getting: nothing to make. After getting a couple of replies suggesting "make clean" again, I blew away the entire directory, reinstalled the sources, reset the paths, and first did a normal "make". Then I followed that with "make
2001 Mar 16
0
boot() vs S-Plus bootstrap()
I'm trying to adapt some S-Plus scripts to run in R (1.2.2, Windows). In one of these scripts, I've bootstrapped the prediction success rate under the discriminant function (lda). The bootstrap() functions are proprietary to S-Plus and there aren't exact equivalents in R. The closest is Canty's library boot based on the Davidson and Hinkley book. Unfortunately, I
2001 May 01
0
Can this be vectorized?
I want to produce some boxplots (and qqnorm plots) for each of a series of groups. It is easy to produce the boxplots or qqplots by groups using either by() or tapply(), but the moment that I want unique labels for each boxplot, I seem to be stuck using a for loop to achieve the effect. For example: tapply(fstat$femur, fstat$race, boxplot) by(fstat$femur, fstat$race, boxplot) gives nicely
2001 Sep 14
0
rpart or Postscript problem?
I've run into another postscript/rpart problem unrelated to the issues I've mentioned in a previous query. I'm using 1.3.1 on a Win2K box. >plotcp(some.rpart.object) draws a very nice plot on the windows graphic device. If I save this as a postscript file, either by opening a postscript device before calling plotcp, or by saving the graphics window as a postscript file, the
2000 Aug 01
1
Testing for parallel slopes
I'm running a series of simple bivariate linear regressions on grouped data. I want to test the slopes to see if they are parallel. I normally use analysis of covariance to do so, looking at interaction between the covariate and the factor to make this determination. VR3 pp.149 - 154 has a very nice example of an ANOCOVA, ending with a discussion of this very operation. My question has
2001 Jul 12
2
rpart puzzle
I've been using the package rpart with R 1.3.0 for Windows to produce simple classification trees for some measurement data from paleontological specimens. Both the rpart documentation and the output confirm that the program produces splits on continuous data that leave "holes" in the data. It is probably of little practical importance, but is there a reason why the binary
2001 Feb 26
1
Difference between S-Plus & R 1.2.1
Sorry for the uninformative subject. The following piece of code gives different output in S-Plus (2K & 6) vs R 1.2.1 (Win) apply(apehum[,6:15], 2, function(x) which(is.na(x))) S-Plus results: > apply(apehum[,6:15], 2, function(x) which(is.na(x))) $latsupri: numeric(0) $medepico: numeric(0) $pdhtcapi: numeric(0) $mlhtcapi: numeric(0) $aphttroc: [1] 151 152 $mlhttroc: numeric(0)
2001 Apr 02
2
Is it possible to...
I have a matrix (1000 x 224) that contains the output from the function boot.array. For each row, there are 224 columns that represent the case numbers of the selected individuals from a bootstrap. The cases are listed in selection order, not numerical order. I'd like to rearrange the cells so that every row has the column entries listed ascending numeric order. I've been able to
2001 Oct 03
1
R != S-Plus
David Brahm's initial post seems to me to be filled with a mixture of bugs, wants, and needs coupled with a desire to "make" R become S-Plus. David, if S-Plus works for you, why are you bothering to convert all your code to R? No one has ever asserted that R==S (or S-Plus), and there is no reason to expect this equality to hold, ever. R is open source. If you want to change
2001 Mar 13
1
kmeans cluster stability
I'm doing kmeans partitioning on a small (n=26) dataset that has 5 variables. I noticed that if I repeatedly run the same command, the cluster centers change and the cluster membership changes. Using RW1022 under Windows NT & Windows 2000 >kmeans(pottery[,1:5], 4, 20) [...snip] $size [1] 7 3 9 7 [...snip] $size [1] 7 10 4 5 [...snip] $size [1] 6 10 5 5 yields a different
2000 Dec 21
2
Legends on plots
I'm trying to develop a systematic way of placing legends on (among other things) scatterplots of grouped data. The journals in my field can be very fussy about the placement of figure legends. Typically they want them to be in either of two places - the upper left corner of the plotting area, not obscuring any data points, or outside the plotting area in the lower right hand corner of
2002 Jan 23
1
?Corrupt Recommended packages source
I'm not really sure this is the place to raise this, but here goes anyway. I've downloaded the 1.4.0 recommended package sources R-1.4.0-recommended.tgz multiple times from the main CRAN site. The sources have arrived corrupted each time (from multiple computers BTW). If I download the same file from the UCLA or University of Bristol mirror, I also get corrupt archive files. On the
2000 Sep 13
2
Cleaning up after compiling R source
Forgive this naive question, but I'm not accustomed to using Win ports of Unix tools (actually I'm unfamiliar with Unix tools, period). Anyway, I've successfully compiled the R-1.1.1 sources into the full binary package. Everything seems to work. I'd like to remove all the "made" files and leave only the original source code and the compiled binary code. Is there
2002 Jul 03
2
"Best" Out of box Linux distro for R
At the risk of starting a holy war, I'd like opinions on the "best" current Linux distribution to run "out of box" with current versions of R. I note rpms for various versions of RedHat, SUSE, Mandrake, and Debian. I've had experience with RH 7.1 & 7.2 and it hasn't been entirely pretty. I understand that 7.3 is a bit "better", but have also