similar to: Using nnet

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
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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]