search for: jhorn

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2000 Jun 13
2
Openssh-2.1.1p1 and solaris 7/8
Hello, I just installed the above openssh onto a Sun Solaris 7 and Solaris 8 system. No problem with that. However, I now seem to get some rubbish processed when I login with slogin. An example: Last login: Tue Jun 13 12:31:27 2000 from jhorne.csd.plymo:tJ` ^[[?1;2c Telnet logs in okay, but just shows 'Last login...jhorne.csd.plymo'. This seems to get passed to the shell, which it of course errors on. I do, however, actually login okay. This is seen on both systems. As a test I purged the /var/adm/lastlog file - logged out, lo...
2006 Mar 07
4
POSIX time zone codes
The manual entry for as.POSIX says this about time zone codes... Usage as.POSIXct(x, tz = "") tz A timezone specification to be used for the conversion... but it fails to mention what these "specifications" are. So far, I have tried... as.POSIX(x, tz="UTC") ... works, gives UTC times as.POSIX(x, tz="UTC") ... works, gives EST times as.POSIX(x,
2007 Feb 08
5
remove component from list or data frame
Sorry to ask such a simple question, but I can't find the answer after extensive searching the docs and the web. How do you remove a component from a list? For example say you have: lst<-c(5,6,7,8,9) How do you remove, for example, the third component in the list? lst[[3]]]<-NULL generates an error: "Error: more elements supplied than there are to replace" Also,
2005 Oct 06
1
circular statistics plotting
...what I think is a simple question. Using the "circular" package, is there a way to plot the mean and variance on top of a rose diagram or other plot of the data? Thanks in advance... - Jason Jason Horn Boston University Department of Biology 5 Cumington Street Boston, MA 02215 jhorn@bu.edu office: 617 353 6987 cell: 401 588 2766 [[alternative HTML version deleted]]
2005 Oct 11
2
non-zero sequence of numbers
Can anyone think of a way to create a pretty() sequence that excludes zero? Or a way to remove the zero from a sequence after using pretty()? Thanks, - Jason Jason Horn Boston University Department of Biology 5 Cumington Street Boston, MA 02215 jhorn@bu.edu office: 617 353 6987 cell: 401 588 2766 [[alternative HTML version deleted]]
2000 Nov 15
1
[PATCH]: nchan.c : internal error: we do not read, but chan_read
...hen closing a session. The first time is okay, but the second (with the channel now in one of the above states) causes the error message. John. ------------------------------------------------------------------------ John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914 E-mail: jhorne at plymouth.ac.uk PGP key available from public key servers -------------- next part -------------- *** nchan.c.orig Wed Nov 15 12:50:04 2000 --- nchan.c Wed Nov 15 12:53:17 2000 *************** *** 98,103 **** --- 98,106 ---- { debug("channel %d: read failed", c->self); switc...
2005 Oct 10
2
R.app window size
...oportionately - it stays the same size when you resize the window. Can this be controlled from the console as well? Is there a way to make text resize proportionately with window size? Thanks, - Jason Jason Horn Boston University Department of Biology 5 Cumington Street Boston, MA 02215 jhorn@bu.edu office: 617 353 6987 cell: 401 588 2766 [[alternative HTML version deleted]]
2000 Jun 13
1
Remote -> remote scp not working
...enied'. Using -v doesn't seem to show much more: Executing: exec /usr/local/bin/ssh -v -x -o'FallBackToRsh no' -n eros scp -v jhf 'alice:jhf' SSH Version OpenSSH_2.1.1, protocol versions 1.5/2.0. Compiled with SSL (0x0090581f). debug: Reading configuration data /export/home/jhorne/.ssh/config debug: Applying options for * debug: Reading configuration data /usr/local/etc/ssh_config debug: Applying options for * debug: Seeding random number generator debug: ssh_connect: getuid 100 geteuid 0 anon 1 debug: Connecting to eros.csd.plymouth.ac.uk [141.163.2.9] port 22. debug: Conn...
2000 Nov 29
1
Pseudo-tty allocation and -T option
...no difference either. My understanding from the man page is that -T should prevent it attempting to allocate a tty. Thanks for any help, John. ------------------------------------------------------------------------ John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914 E-mail: jhorne at plymouth.ac.uk PGP key available from public key servers
2006 Feb 20
1
RMySQL Error Messages, crashing R
...tried installing RMySQL from sources, but it makes no difference. Does anyone know what this error message means. Are there any OS X users that have with R 2.x working with RMySQL? Please help! - Jason Jason Horn Boston University Department of Biology 5 Cumington Street Boston, MA 02215 jhorn@bu.edu office: 617 353 6987 cell: 401 588 2766 [[alternative HTML version deleted]]
2000 Nov 08
1
internal error: we do not read, but chan_read_failed
...d be grateful. I have commented out the call to 'chan_read_failed' here and have seen no problems so far. That's it - phew! John. ------------------------------------------------------------------------ John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914 E-mail: jhorne at plymouth.ac.uk PGP key available from public key servers
2007 Feb 09
2
Replace individual values in a data frame with NA
I'd like to replace a value in a data frame with an NA, but can't figure out how. For example, say you have a<-c(1,2,3,4) b<-c(5,6,7,8) data<-data.frame(a,b) Now, how would you set the third row of the second column ( data [[3,2]] ) to NA? I have tried all types of permutations with is.na, including is.na<- data[[3,2]], which does not work. Thanks
2006 Mar 06
1
Length of a vector of POSIX objects reported incorrectly?
I have a vector of POSIX times/dates (called "times") that I want to plot. But I'm having trouble because R reports the length of the vector incorrectly. Can someone help me figure out what's going on here? This code.... print(times) print(class(times)) print(length(times)) Produces this... . . . [355] "2006-03-06 18:34:00" "2006-03-06 18:32:00"
2006 Mar 07
1
How to change time zones?
Say you have a POSIX object that is in UTC. How do you change the values to another timezone? If I do this: times <- strptime(times, "%H:%M:%S") times1 <- as.POSIXct(times, tz="UTC") times2 <- as.POSIXct(times, tz="CDT6CST") times1 id UTC, but times2 is still UTC, not CTD. Why? Is the only was to change time zones to add seconds to POSIX objects?
2006 Oct 18
1
Select one row of a data frame
Can anyone tell me how to select just one row of a data frame? Say I want just the third row, what would be the syntax? Every notation I try just gives me columns. Thanks - Jason
2007 Sep 17
2
How to produce a macron symbol (overline / overbar) on a plot
...ow to produce a macron (or overbar or overline) symbol on an R plot. I have an axis that is labeled "temp", but I need the overbar symbol over the entire word. Thanks, Dr. Jason W. Horn Research Associate Boston University Department of Biology 5 Cumington Street Boston, MA 02215 jhorn@bu.edu office: 617 353 6987 cell: 401 588 2766 [[alternative HTML version deleted]]
2008 Feb 29
1
Column sums from a data frame (without the column headers)
Does anyone know how to get a vector of column sum from a data frame? You can use colSums(), but this gives you a object of type "numeric" with the column labels in the first row, and the sums in the second row. I just want a vector of the sums, and I can't figure out a way to index the "numeric" object. Thanks!
2000 Oct 26
1
bug with -i
The code that handles identity files listed on the command line only adds the files to the options.identity_files array, which is for RSA keys. If you use the SSH2 protocol and have a DSA identity, you cannot specific it with -i on the command line.
2000 Oct 30
1
SSH-askpass - timeout possible?
...possible to set a timeout so that if, say, nothing occurs within a minute then it assumes no passphrase and the login continues? Thanks, John. ------------------------------------------------------------------------ John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914 E-mail: jhorne at plymouth.ac.uk PGP key available from public key servers
2000 May 22
3
scp not found with solaris 8/2.1.0p2
I've just upgraded to 2.1.0p2 on my solaris 8 boxes (now it survives a little longer, thanks!). But, I'm seeing "scp not found" where before it was fine. configure --prefix=/opt/local --with-random-/dev/random (the entropy generator is still broken), and in the past I had no problems with scp, but AFAIK something's broken in 2.1.0. Is anyone else seeing anything similar?