Displaying 20 results from an estimated 400 matches similar to: "Using nnet"
2004 Aug 27
1
Plotting irregular grid as image or persp
Hi,
I have an array of 2d node locations and an array triangles, and would
like to plot something like a image or persp.
An example of doing it with rgl is:
library(ncdf)
library(rgl)
# wget http://www.maplepark.com/~drf5n/extras/teapot.nc
teapot<-open.ncdf("teapot.nc")
z<-get.var.ncdf(teapot,"tris")
l<-get.var.ncdf(teapot,"locations")
2007 May 04
1
Partitioning a kde2d into equal probability areas
Hi,
I'd like to partition a 2d probability density function into regions of
equal probability. It is straightforward in the 1d case, like
qnorm(seq(0,1,length=5)) but for 2d I'd need more constraints.
Any suggestions for how to approach this? Is seems like a spatial
sampling problem but I'm not sure where to look.
Thanks for your time,
Dave
--
Dr. David Forrest
drf at
2005 Jun 06
9
R Graph Gallery : categorization of the graphs
Hello all,
It seems that the next improvement to the R Graph Gallery is
categorization of the graphics, that way each graph will be easier to
find. That step should be done *carefully* if we want to avoid the
opposite side-effect : graph not reachable through the categories.
That's why the wisdom of the R community is required.
Graphics will be classified in :
- categories
-
2003 Jul 11
3
postscript/eps label clipping
The following code produces an eps file with the tops of each of the ylabs
clipped off.
par(mfrow=c(2,2))
plot(runif(10),
ylab="Function(Lengthy Expression)",xlab="Prediction")
plot(runif(10),
ylab=expression(Delta * Beta^2),xlab="Prediction")
plot(runif(10),
ylab="Function(Lengthy Expression)",xlab="Prediction")
2004 Dec 08
2
what about a mascot ?
My friend Veslot proposed me the Raven !
http://www.teteamodeler.com/allopass/images/corbeau.jpg
As a matter of fact the intelligence of this bird is
comparable to one of a monkey, although its brain is close to
a reptile brain. R is quite the same : small, compact, but so
clever.
This is a canadian website explaining (in french) the R-aven
intelligence
2007 Mar 12
3
reading BMP into R
Um texto embutido e sem conjunto de caracteres especificado associado...
Nome: n?o dispon?vel
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20070312/112cd7f9/attachment.pl
2005 Apr 01
2
(no answer)
I wish to perform brain surgery this afternoon at 4pm and don't know
where to start. My background is the history of great statistician
sports legends but I am willing to learn. I know there are courses and
numerous books on brain surgery but I don't have the time for those.
Please direct me to the appropriate HowTos, and be on standby for
solving any problem I may encounter while
2007 Apr 24
5
Random Number Generator of Park and Miller
Hi,
I failed to search for R package providing random number generator of "Park
and Miller".
Anyone know any R package supporting this kind of function?
Thanks,
Grace
--
View this message in context: http://www.nabble.com/Random-Number-Generator-of-Park-and-Miller-tf3636501.html#a10154554
Sent from the R help mailing list archive at Nabble.com.
2004 Dec 09
3
US 2004 Elections map
even for people who didn't like the outcome of the US elections this
year, it must have been a joy to see all the nice (and not so nice)
graphs that were shown. As an exercise, I recreated the map shown on
the NY-Times website [
http://www.nytimes.com/packages/khtml/2004/11/03/politics/
20041103_px_ELECT_GRAPHIC.html ]
If you're interested,
2005 Mar 22
1
sub('^','var',1:3) produces unexpected results
Hi,
According to help(sub), the ^ should match the zero-length string at the
beginning of a string:
sub('^','var',1:3) # "1" "2" "3"
sub('$','var',1:3) # "1var" "2var" "3var"
# This generates what I expected from the first case:
sub('^.','var',11:13) # "var1" "var2"
2005 Nov 09
8
Element-by-element multiplication operator?
Is there an element-by-element multiplication in R, like the .* operator in Matlab?
eg: A (2x3)
B (2x3)
C=A.*B
C (2x3)
C = [[a11*b11 a12*b12 a13*b13]; [a21*b21 a22*b22 a23*b23]]
I can't find one...
Thanks
-Mike Gates
2004 Nov 19
5
help! a urgent question
Dear Sir/Madam,
I am doing a project related to R.
However, it is always difficult find some R functions.
The R user guide seems not complete.
Is there any free document about all R functions ?
Who knows ? please help me.
My email is myzhaogong@yahoo.com
Thank you very much
---------------------------------
[[alternative HTML version deleted]]
2005 Aug 24
8
Call SAS from R
Hi All,
I am new to post question on this list. I apologize if this question is too
easy or irrelevant.
I am doing a simulation study and I need to read a data file that can be
easily read by SAS.
So, what I try to do is to execute SAS in R and then read the output of SAS
to R.
I try the following code but it didn't work.
system("c:\\program files\\sas institute\\v8\\sas.exe
2006 Sep 18
8
acos(0.5) == pi/3 FALSE
Hello,
I don't know if the result of
acos(0.5) == pi/3
is a bug or not. It looks strange to me.
Inaki Murillo
2007 Apr 11
8
graphs superimposed on pictures?
Hi:
I am doing some work that involves plotting points of interest
superimposed on photographs and maps. I can produce the plots fine in R, but so far
I have had to do the superimposition externally, which makes it tedious to do exploratory work.
I have looked to see if there is some capability to put a background picture on a plot window,
but I have not found anything.
Advice, anyone?
Cheers
2005 Oct 11
6
adding 1 month to a date
Within an R dataset, I have a date field called “date_”. (The dates are in the format “YYYY-MM-DD”, e.g. “1995-12-01”.)
How can I add or subtract “1 month” from this date, to get “1996-01-01” or “ “1995-11-01”.
---------------------------------
[[alternative HTML version deleted]]
2005 Mar 23
2
sub('^', .....) bugs (PR#7742)
>>>>> "David" == David Forrest <drf5n@maplepark.com>
>>>>> on Tue, 22 Mar 2005 15:02:20 -0600 (CST) writes:
David> According to help(sub), the ^ should match the
David> zero-length string at the beginning of a string:
yes, indeed.
David> sub('^','var',1:3) # "1" "2" "3"
2002 Sep 24
1
AW: duplex settings [ was Re: parsing fix for spoolss & s amba-2.2.5]
Hi,
We are using samba2.2.6pre2 and still have the problem with the printer
duplex/tray settings like in samba2.2.5 (although the duplex/tray options
are configured on samba, they are not correctly set to w2k clients)
Does anybody know why?
Thanks for any tip.
Khiem
-----Urspr?ngliche Nachricht-----
Von: Gerald Carter [mailto:jerry@samba.org]
Gesendet: Mittwoch, 28. August 2002 06:11
An: Glen
2002 Oct 22
1
can't install printer driver to samba2.2.6 and 3.0alpha20
Can not install printer driver for zebra printers to samba2.2.6 and
3.0alpha20.
I got follow error in log.smbd (loglevel 2):
---
2002/10/22 14:33:29, 0] rpc_parse/parse_spoolss.c:spoolss_io_devmode(702)
spoolss_io_devmode: Unknown specversion in devicemode [0x0]
[2002/10/22 14:33:29, 0] rpc_parse/parse_spoolss.c:spoolss_io_devmode(703)
spoolss_io_devmode: please report to
2002 Aug 28
1
AW: duplex settings [ was Re: parsing fix for spoolss & s amba-2.2.5]
Hi Jerry,
It seems that the "samba-2.2.5-printing.patch" has only fixed the problem
for PCL drivers.
With PS drivers (Laserjet 4050 PS) are the duplex & tray settings still
missing.
Best regards,
Khiem
-----Urspr?ngliche Nachricht-----
Von: Glen Gibb [mailto:grg@ridley.unimelb.edu.au]
Gesendet: Mittwoch, 28. August 2002 07:41
An: Gerald Carter
Cc: Samba
Betreff: Re: [Samba]