Displaying 20 results from an estimated 900 matches similar to: "Essay identification"
2005 Nov 29
3
floor()
Dear All,
Is this right?
> floor((5.05-floor(5))*100)
[1] 4
I would expect 5, or am I wrong?
Thanks and regards,
W
---------------------------------
[[alternative HTML version deleted]]
2005 Jun 13
3
Perl installation under SuSe
Hi R-Help,
I have just downloaded RSPerl_0.7-0.tar.gz under SuSe.
If I type
owner@linux: ~work> R CMD INSTALL -c RSPerl_0.7-0.tar.gz
i get the following error message
makedir: cannot create directory '/user/lib/R/library/00LOCK' : Permission denied
ERROR: failed to lock directory '/usr/lib/R/library' for modifing
I would really appreciate if somebody can help me
2012 May 31
1
Automated essay scoring by R
Hi,
I am a doctoral student and I want to have a study about the automated essay scoring system. From some papers the authors mentioned that some experiments of the automated essay scoring study are using the package of the R open source software. I am a new learner of R and I would like to know which package of R can be used to serve this purpose and how to do then. Grateful if you could give me
2005 Oct 15
1
solve() versus ginv()
Dear All,
While inverting a matrix the following error appears on my console:
Error in solve.default(my_matrix) : Lapack routine dgesv: system is exactly singular
With this respect, I have been replacing the solve() function with ginv(): the Moore-Penrose generalized inverse of a matrix.
These are the questions I would like to ask you:
1. Would you also replace solve() with ginv() in
2005 Apr 19
1
Optim(...parscale...)
Hi there,
The optim(par, fn, ...parscale...) function in R requires 'parscale' which is defined as:
"A vector of scaling values for the parameters. Optimisation is performed on 'par/parscale' and these should be comparable in the sense that a unit change in any element (??) produces a unit change in the scaled value".
I am just not understanding the
2006 Feb 25
1
How to pre-populate Edit form in rails?
In our rails application, there is a model called Essay and another
called Tag. Essay ''has_and_belongs_to_many'' tags. When a user CREATEs an
essay, he gives the text in a text field which corresponds to a database
column in the essays table. The _form.rhtml also provides a text area
that lets the user tag the essay with keywords. The text area does not
correspond directly to
2003 Oct 16
4
summary with names
Hi,
how can I tell 'summary' to print the name of the summarised
variable? This is probably an awkward newbie question but I
didn't find an answer in the Docus, the FAQ and maillist archive.
I want a summary for about 250 variables and realise it
the following way (I know, that I shouldn't use iterations
that way in R; but at the moment it's the easiest way for me):
2005 May 11
3
problem with the pro/1000 driver for intel gigabit ethernet card
I encountered a problem with dom0 when rebooting and running an intel
gigabit card using the pro/1000 driver. When the system tries to shut
down I get the following output of an strace command :
.........
17:10:49.063616 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3 <0.000029>
17:10:49.063689 ioctl(3, 0x8913, 0xbffffc80) = 0 <0.000018>
17:10:49.063751 ioctl(3, 0x8914, 0xbffffc80) =
2003 Oct 12
7
Integration between R & latex
As an R absolute beginner and an expert (very old) statistician and latex user,
I'm interested in using R to produce AUTOMAGICALLY tables in latex format. I
mean I would like to have the means to build an R procedure generating **FROM
INSIDE** a table or a graph to be inserted directly into latex.
I've read http://hesweb1.med.virginia.edu/biostat/s/doc/summary.pdf where the
author speaks
2003 Oct 30
7
Weird problem with median on a factor
Hi all,
I hope this isn't a naive newbie question again. Here you can see column 264 of
a data frame containing data of the same interview in May and September. Column
264 contains the answers of 49 persons to a question in May.
> fbhint.spss1[,264]
[1] teils/teils sehr wichtig <NA> <NA> sehr wichtig
[6] sehr wichtig sehr wichtig sehr wichtig <NA>
2003 Oct 21
2
Graphics overview
Hi,
is there an graphics overview, where the graphic capabitlities
of R are shown with the corresponding code? I already tested
'demo(graphics)', that isn't that comprehensive,
'demo(image)', 'demo(lattice)', searched the Mailarchive,
googled and the FAQ keeps silent, too.
For example, I know how a special graphic I need should
look like, but I don't know
2003 Nov 07
2
chisq.test error: x and y must have at least 2 levels
Hi,
I use a little script? to make a chi-square-test on 162
factors (it makes no difference if I take the numeric variant
of the factors). At factor nr. 4 is stops with an error:
[1] "v1= V7.KARTM v11= V7.KAR1M"
Error in chisq.test(d1, d2) : x and y must have at least 2 levels
But x and y /have/ two levels ("nein", "ja"):
> fbhint.spss1$V7.KARTM
[1] nein
2005 Apr 26
2
"wild" function example in optim
Dear all,
Firstly, I do apologize if my question is simple and posted in the wrong place but I had no reply from the R-help mailing list (maybe it is too simple!).
I was wondering why parscale is set to 20 in the "wild" function example used in ?optim. This function has only one parameter and if we set parscale equal to 1 then the solution near the global minimum is not found.
I
2006 Jun 21
5
command to echo size of images
All,
Is there a command line program in centos to echo back the size of an
image (gif,jpg,png)?
I did see that file image.jpg sometimes works but reports the wrong
image size.
I see xview image.jpg reports the correct size but I dont want to see
the image just get its size.
Thanks for any suggestions.
Jerry
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
2006 Jun 07
7
Tunneling in capistrano twice
Hi there,
The default recipe expects you to be able to access your web server
directly from your local machine.
On our web server, for security purposes, it is only possible to ssh
to it through one particular ip (which is also a remote machine.)
The capistrano source is so compact and tidy it looks very hackable.
But rather than messing around I thought I''d ask first if anyone else
2004 Apr 29
1
Asttapi in Terminalserver/Muliuser Setup ?
Hi,
I evaluated asttapi, it fits our needs to dial with asterisk out of
windows applications.
But we are working with rdesktop on a windows 2000 terminal-server, 3 Users on 1
Machine
Whenever a user Sets up asttapi via outlook the configuration
changes for all users. For example when I enter sip/340 as my extension,
the other users also have sip/340 in their configuration.
Do you know a trick
2005 Oct 21
1
problems with tools/pygrub/setup.py and xen/xm/main.py
When making the "unstable" version I got an in "tools". There was a complaint
about "cc.has_function" in the following code area in tools/pygrub/setup.py
if cc.has_function("ext2fs_open"):
ext2defines.append( ("HAVE_EXT2FS_OPEN2", None) )
else :
sys.stderr.write ("Warning: older veriosn of e2fsprogs installed ...")
2012 Oct 31
6
Virtualization Options!
Hi,
I'm searching for "virtualization options". I already take a look on
VMware, but it needs too much MS software to work for my needs. Citrix needs
less, but the key validation is still MS-AD.
Now I'm taking a look at RHEV... and run into Oracle VM! Somebody had already
take a look at Oracle VM?
We need in primary a solid VM solution for an "enterprise
2008 May 04
3
generic trac question
Probably not the best time to ask this considering people are busy for
the next release, but we're looking at trac for a project (apparently)
and I remembered that there was a Xiph plan to move away from it. Does
anyone have time to recall the reasons (I don't need an essay, just a
keyword or two would be appreciated.
--
imalone
2006 Mar 30
12
network monitoring systems
Does anyone have any recommendations for network monitoring systems that
work with CentOS 3 or 4?
thanks