Displaying 20 results from an estimated 2000 matches similar to: "bug plotting dates?"
2003 Jun 04
2
convert factor to numeric
Hi R-experts!
Every once in a while I need to convert a factor to a vector of numeric
values. as.numeric(myfactor) of course returns a nice numeric vector of
the indexes of the levels which is usually not what I had in mind:
> v <- c(25, 3.78, 16.5, 37, 109)
> f <- factor(v)
> f
[1] 25 3.78 16.5 37 109
Levels: 3.78 16.5 25 37 109
> as.numeric(f)
[1] 3 1 2 4 5
>
What I
2003 May 16
2
Axis labels
Hello R-experts!
When I produce a plot R takes avoids overlapping axis labels in order to
maintain readabilty which is great. But now I have written a little
custom plot function in which I set my own labels and label
positions after generating the actual plot:
axis(..., lables=c('A', 'B', 'F', 'G', 'M'), at=mypositions)
As you may have guessed: This is
2002 May 28
2
histogramming dates
I'd like to make a plot showing frequency of an event. The data
is in a data from that includes Year, Month and Day (of month)
fields, so I created a Date with ISOdate(Year, Month, Day,
tz=''). I can plot frequencies for the year 2002 with
> thisyear <- Date[Year==2002]
> hist( thisyear, xaxt='n' )
> axis.POSIXct( 1, at=seq(min(thisyear), max(thisyear),
2003 Aug 18
1
round.POSIXt sometimes crashes R (PR#3763)
Full_Name: andrea capodicasa
Version: 1.7.0
OS: w2k sp3
Submission from: (NULL) (212.17.194.154)
Hi all,
the problem is when you try to round.Posix an empty vector of dates
Please give a look to this code:
> data=seq(ISOdate(2001,1,1),by="day",length=3)
> data
[1] "2001-01-01 13:00:00 ora solare Europa occidentale"
[2] "2001-01-02 13:00:00 ora solare Europa
2002 Sep 27
1
Listing Domain controllers, Local and Master Browsers running in your network
Hi,
when trying to configure my samba server, I was curious if there's any
Domain controller running on our subnet. I could only find notes in
documentation of samba, that there has to be only one Domain Controller
running, otherwise weird things would happen ... Btw what are those weird
things?
I couldn't find an option in smbclient or nmblookup to list for example
Domain
2002 Dec 02
0
Cannot compile openssh-3.5.p1 on Irix 6.5.15 with kerberos4
Hi,
I have the following problem. I think it's arising from the fact, that
DES algorithms are fetched from libcrypto and not from libdes anymore.
But, some types still clash. I use krb4-1.2.1 from
http://www.pdc.kth.se/kth-krb
cc -O2 -n32 -TARG:platform=IP22 -OPT:Olimit=0 -I/usr/local/include -I/software/@sys/usr/include -I/usr/local/BerkeleyDB.4.0/include -I/usr/local/openssl/include
2002 Sep 26
0
Weird errors in logfile for 2.2.5
Hi,
I see some wird messages in samba's logfile on Solaris 2.6. Could anyone
explain me what's that? I think some hostanmes and usernames are just missing.
[2002/09/25 19:17:33, 3] smbd/oplock.c:init_oplocks(1211)
open_oplock_ipc: opening loopback UDP socket.
[2002/09/25 19:17:33, 3] lib/util_sock.c:open_socket_in(813)
bind succeeded on port 0
[2002/09/25 19:17:33, 3]
2002 Dec 08
1
Building openssh-3.5p1 with new DES functions
Hi,
I've seen that openssh will have different function names for des, I
think thats great. As kerberos4 nor kerbero5 from KTH in Sweden support
those new calls yet, I thought it would be best for me to switch back to
the old behaviour, i.e. have kerberized libkrb and other libs with
disabled support for openssl (which means libdes is compiled).
Then, compile openssh-3.5p1 with kerberos4
2007 Mar 22
2
difftime / RBloomberg
hi,
I've troubles with some difftime objects. e.g.
ISOdate(2001, 4, 26) - ISOdate(2001, 2, 26) - 2
works, telling me "Time difference of 57 days". But when I'd like to add
days, such as
ISOdate(2001, 4, 26) - ISOdate(2001, 2, 26) + 2
the function gives me an error. Function "as.COMDate.chron" of the
Rbloomberg package doesn't work for that reason.
I'm
2002 Jul 12
0
rsync-2.5.5 and sys/mode.h on Irix 6.5.15f
Hi,
it seems rsync's configure complains about sys/mode.h.
here's the relevant part from config.log. Any idea what should I do now
with it?
Thanks!
configure:4360: checking sys/mode.h usability
configure:4369: cc -c -O3 -n32 -TARG:platform=IP22 -I/usr/local/include -I/software/@sys/usr/include -I/usr/local/Berkele
yDB.4.0/include -DHAVE_CONFIG_H -O3 -n32 -TARG:platform=IP22
2003 Nov 14
5
ISOdate() and strptime()
Dear R-people!
I am using R 1.8.0, under Windows XP.
While using ISOdate() and strptime(), I noticed the following behaviour when
"wrong" arguments (e.g., months>12) are given to these functions:
> ISOdate(year=2003,month=2,day=20) #ok
[1] "2003-02-20 13:00:00 Westeurop?ische Normalzeit"
> ISOdate(year=2003,month=2,day=30) #wrong day, but returns a value
[1]
2002 Sep 16
2
privsep versus compression
Hi,
I'm unable to get Kerberos4 authentication working with openssh-3.4p1.
I'm getting a message that privsep is not available on my platform (Irix
6.5.15) and another message stating that compression and privsep are
mutually exclusive. But, ssh decided to turn off compression, I think
because of servconf.c. I think it would be more usefull to have
compression enabled and disable privsep
2002 May 21
1
I() fails on objects of class POSIXct (PR#1587)
Although the documentation is somewhat sketchy, I() can be used to create
objects of class AsIs:
> I("a")
[1] "a"
attr(,"class")
[1] "AsIs" "character"
> I(4)
[1] 4
attr(,"class")
[1] "AsIs" "numeric"
> I(4 + 0i)
[1] 4+0i
attr(,"class")
[1] "AsIs" "complex"
>
This
2002 Aug 19
0
kerberosIV authentication is broken in openssh-3.4p1
Hi,
I think kerberosIV authentication is broken in openssh-3.4p1 in ssh2
version protocol:
nmrindy$ klist
Ticket file: /tmp/tkt111_429097
Principal: mmokrejs at NATUR.CUNI.CZ
Issued Expires Principal
Aug 19 12:40:49 Aug 19 22:40:49 krbtgt.NATUR.CUNI.CZ at NATUR.CUNI.CZ
Aug 19 12:40:49 Aug 19 12:45:49 rcmd.nmrindy at NATUR.CUNI.CZ
Aug 19 12:40:49 Aug 19
2003 Nov 19
5
ISOdate returns incorrect date?
Dear all,
I have found the following (for me) incomprehensible behaviour of
ISOdate (POSIXct):
> ISOdate(1900,6,16)
[1] "1900-06-15 14:00:00 Westeurop?ische Sommerzeit"
> ISOdate(1950,6,16)
[1] "1950-06-16 14:00:00 Westeurop?ische Sommerzeit"
Note that in the first case I get the 15th of June back, not the 16th as
I would have expected!
This happened under R-1.7.1 on
2007 May 10
3
Getting the last day of the month.
Hi,
Given a date, how do I get the last date of that month? I have
data in the form YYYYMM, that I've read as a date using
> x$Date <-
as.Date(ISOdate(substr(x$YearEnd,1,4),substr(x$YearEnd,5,6),1))
But this gives the first day of the month. To get the last day of the
month, I tried
> as.Date(as.yearmon(x$Date,frac=0))
But I don't get the last day of the month here. (Tried
2004 Jun 07
7
Vectors of years, months, and days to dates?
The interface for dates in R is a little confusing to me.
I want to create a vector of Date objects from vectors of years, months, and
days.
One solution I found is:
years <- c(1991, 1992)
months <- c(1, 10)
days <- c(1, 2)
dates <- as.Date(ISOdate(years, months, days))
But, in this solution the ISOdate function converts the vectors into
characters,
which can cause serious
2004 Sep 22
5
block statistics with POSIX classes
I have a monthly price index series x, the related return series y = diff(log(x)) and a POSIXlt date-time variable dp. I would like to apply annual blocks to compute for example annual block maxima and mean of y.
When studying the POSIX classes, in the first stage of the learning curve, I computed the maximum drawdown of x:
> mdd <- maxdrawdown(x)
> max.dd <- mdd$maxdrawdown
> from
2002 Oct 16
2
ssh-keygen opens NULL filename
Hi,
it's impossible to use -f option with ssh-keygen with version 3.5p1:
$ ./ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N ""
Generating public/private dsa key pair.
open failed: No such file or directory.
Saving the key failed: .
$
--
Martin Mokrejs <mmokrejs at natur.cuni.cz>, <m.mokrejs at gsf.de>
PGP5.0i key is at http://www.natur.cuni.cz/~mmokrejs
MIPS /
2018 Jan 22
0
Manipulating two large dataset differing by date and time
Hi Ogbos,
You can just use ISOdate. If you pass more values, it will process them:
ISOdate(2018,01,22)
[1] "2018-01-22 12:00:00 GMT"
> ISOdate(2018,01,22,18,17)
[1] "2018-01-22 18:17:00 GMT"
Add something like:
if(is.null(data$hour),data$hour<-12
then pass data$hour as it will default to the same value as if you
hadn't passed it.
Jim
On Mon, Jan 22, 2018 at 6:01