similar to: Fwd: Re: Kohonen Package

Hi All, I am still learning R, but making, IMO, great strides. I learned about Kohonen/Self-Organizing Maps in class and I would like to try to replicate some of the things we have seen in class. Below is my code. I am trying to create a u-matrix. In the documentation on page 9 it appears the type of plot, dist.neighbours should do the trick, however, I am getting an error: (Error in

All, The kohonen predict function is returning NA for SOM predictions regardless of data used... even the package example for a SOM using wine data is returning NA's Does anyone have a working example SOM. Also, what is the purpose of trainY, what would be the dependent data for an unsupervised SOM? As may be apparent to you by my questions, I am very new to kohonen maps and am very grateful

Hi, I am interested in using the cast function in R to perform some aggregation. I did once manage to get it working, but have now forgotten how I did this. So here is my dilemma. I have several thousands of probes (about 180,000) corresponding to each gene; what I'd like to do is obtain is a frequency count of the various occurrences of each probes for each gene. The data would look

Hi, I'm trying to utilize the kohonen package to build SOM's. However, trying this on my data I get the error: "Argument data should be numeric" when running the som(data.train, grid = somgrid(6, 6, "hexagonal")) function. As you see, there is a problem with the data type of data.train which is a list. When I try to convert it to "numeric" I get the error:

hi all, i would like to apply the kohonen 's algorithm (SOM). Somebody knows if there is an available script ? thanks -- ------- Olivier MARTIN -------- _______________________________ _______________________________ CEA 17, rues des martyrs LETI/DSYS/SCSI Bur 225 olivier.martin at cea.fr 04 76 88 47 61 (bur.) 04 76 88 57 87 (fax.) ---------------------- 06 08 67 93 42 (pers.)

Hi All, I am experimenting with using binary data (1, 0) in the kohonen package. I would like either 1 or 0 to be mapped in SOM, but the package gives me 1 or 0 (as expected), but something in between. I am not scaling the binary data, but still there are in-between values. Can anybody suggest a way to keep the data binary, even in the SOM plot? Thanks a lot. George

I have a data set with 10 variables, and about 8000 instances (or objects/rows/samples). In addition I have one more ('class') variable that I have about 10 instances for, but for which I wish to impute values for. I am a little confused how to go about doing this, mostly as I'm not well-versed in it. Do I train the SOM with a data object that contains just the first 10 variables

I would really like some or any advice on how I can improve (or fix??) the following analysis. I hope I have provided a completely runnable code - it doesn't produce any errors for me. The resulting plot at the end shows a pretty poor correlation (just speaking visually here) to the test set. How can I improve the performance of the mapping and prediction? Here are some of the data

GPM Modula-2 and Oberon-2 Compilers File locations: ftp.fit.qut.edu.au:/pub/gpm ftp.psg.com:/pub/modula-2/gpm WEB Site: http://www.fit.qut.edu.au/CompSci/PLAS/GPM/ The Gardens Point Modula (GPM) compilers are an ongoing development project for the Programming Languages and Systems Group in the Faculty of Information Technology at the Queensland University of Technology.

You have attempted to send a message to a list to which you are not authorised. Your message has been discarded. QUT Help Desk (Postmaster) helpdesk@qut.edu.au Ph: +61 7 3864 4000 --- Original Message --- Received: from mail-router01.qut.edu.au (IDENT:mirapoint@mail-router01.qut.edu.au [131.181.254.7]) by copperhead.qut.edu.au (8.11.6/8.11.6) with ESMTP id i678hKJ30761 for

> > > Dear All, > > > > I am currently using R for windows. > > > > I am wondering why the dates command in chron package does not work in the > > following situation: > > > > cut(dates(c(23,45,67),origin=c(1,1,2004)),"months") > > > > but will work for: > > > >

Hi, I'm having problems with the queue on a Tru64 box running Samba 2.2.4. When the queue is viewed from a client machine it displays a print job with fields equivalent to the first line the lpq command outputs. For example, lpq returns: # lpq -P itsgp_css1 crow.qut.edu.au: Tue May 14 09:23:54 2002: no entries Then if I get on a client machine (Win2k) and look at the queue there is a

Dear All, I am wondering if R now has a similar function to inspect in Splus? Someone post this question in 1999 and the answer was no, and I am wondering if this function has been developed in 2003? Thanks for your attention. ************************************************************************************** Steve Su (s.su@qut.edu.au) PhD student. School of Accountancy

> On Mar 15, 2018, at 10:24 PM, Adrian Friskin <adrian.friskin at qut.edu.au> wrote: > > Hello R-help, > I currently have R-project 3.4.2 and R-studio 1.1.383 installed on some of our universities computer labs. Since the installation of Visual studio the default version of R installed has changed to the version installed by VS. Users can change the

Dear All, I wonder whether it is still valid to use the following R code for cut. All I have done is changed: if (is.na(breaks) | breaks < 2) to: if (is.na(breaks) | breaks < 1) so that it covers interval of 1? It seems okay for my purposes but I am not sure why R specifically does not allow break<2 to happen. Steve. cut.default<- function (x, breaks, labels =

Dear All, Is there a R (Windows) equivalent of yeardays in Splus 6.0 for Windows? I am using XP. ************************************************************************************** Steve Su (s.su@qut.edu.au) PhD student. School of Accountancy Queensland University of Technology Postal Address: Steve Su, School of Accountancy, QUT, PO Box 2434, Brisbane, Queensland,

Dear All, Is there a way I can turn off the following warning message for using multi-argument returns? multi-argument returns are deprecated in: return(p1, p2, p3, p4) Steve. ************************************************************************************** Steve Su (s.su@qut.edu.au) Postdoctoral fellow Faculty of Business Queensland University of Technology Postal

Pat Burns makes a good point. -Peter -------- Original Message -------- Subject: Re: [R] Using seq_len() vs 1:n Date: Fri, 12 Feb 2010 09:01:20 +0000 From: Patrick Burns <pburns at pburns.seanet.com> To: Peter Ehlers <ehlers at ucalgary.ca> References: <4B746AEF.10900 at ucalgary.ca> If you want your code to be compatible with S+, then 'seq_len' isn't going to work.

Hi everybody! I try to implements Self-Organizing Maps with R and the Kohonen package. I have made an algorithm that try differents width and height. For each step, Silhouette index, Davies-Bouldin index and Dunn index are computed. However, there is always after severals minutes a *Runtime error* appears on the window: Microsoft visual c++ runtime library "this application has requested

Dear R helpers I'm experimenting with the 'kohonen' package and have two questions. I've been following examples in the package manual and the paper from the Journal of Geostatistical software (October 2007, Volume 21, Issue 5.). I've set up a file with the 'animals' data (see attached file) which I used test a SOM routine I wrote in Fortran some years ago. The