similar to: Two Noobie questions

Hi Roger, As we know that The Oja median has (finite) breakdown point 2/n, i.e., is not robust in any reasonable sense, and is quite expensive to compute, so do we have some better methodology to compute multivariate median Rahul Agarwal Analyst Equities Quantitative Research UBS_ISC, Hyderabad On Net: 19 533 6363 [[alternative HTML version deleted]]

Rahul Agarwal Analyst Equities Quantitative Research UBS_ISC, Hyderabad On Net: 19 533 6363 hi let me explain you the problem we have a database which is in this format Stocks 30-Jan-08 28-Feb-08 31-Mar-08 30-Apr-08 a 1.00 3.00 7.00 3.00 b 2.00 4.00 4.00 7.00 c 3.00 8.00 655.00 3.00 d 4.00 23.00 4.00 5.00 e 5.00 78.00 6.00 5.00 and we have a query

Dear all, I would like to aggregate a data frame (consisting of 2 columns - one for the bins, say factors, and one for the values) along bins and quantiles within the bins. I have tried aggregate(data.frame$values, list(bin = data.frame $bin,Quantile=cut2(data.frame$bin,g=10)),sum) but then the quantiles apply to the population as a whole and not the individual bins. Upon this

Hi, Can we get the code for calculating Oja median for multivariate data Thanks and Regards Rahul Agarwal Analyst Equities Quantitative Research UBS_ISC, Hyderabad On Net: 19 533 6363 [[alternative HTML version deleted]]

Dear R list, I've been attempting to interpret the results from a three-way ANOVA. I think I understand contrasts and the R defaults for these (treatment contrasts). My question is: what is the intercept in this test? As far as I can tell, its NOT the expected value of a point that belongs to the first level of all three explanatory factors (because there is only one point that satisfies these

Hello All! I have a question regarding the package RDCOMClient. I want to start an Excel file with R and it works flawlessly except the fact, that Add-Ins are not loaded. Can someone please explain me how to load one? Does it work with ex$AddIns$Invoke? Greetings, David [[alternative HTML version deleted]]

Hello, I have a pre-built xen image from jailtime.org (centos.5-2.64.img). However, I cannot get it to boot. As per the instructions, my conf file is: kernel = "/boot/vmlinuz-2.6.18-53.el5xen" ramdisk = "/boot/initrd-2.6.18-53.el5xen.img" memory = 256 name = "centos.5-2.64" vif = [ '''' ] #dhcp= "dhcp" disk =

Problem: I have a data frame with 1s and 0s denoting presence/absence of species (columns) for particular plot measurements (rows). What I want to do is make a new column whose entries for each row is a list of the column names in which a species is present (ie. for row one its entry might read: "sp1","sp2", etc.). I've tried various functions etc. but can't seem to

NB: Not reply needed (Ben was extremely helpful!) I've just started using R last week and am still scratching my head. I have a data set and want to run a separate regression across each level of a factor (treating each one separately). The data right now is arranged such that the value of the factor along which I want to "split" my data is one column among many. Best way to do

Just a note: This is similar to the problems I am (still) having. I too am using Redhat9 (Icecast2 and Ices2). I've used Winamp2 (Zinf tells me the data is corrupted), but instead of the high-pitched noise you describe - I get dead silence. Of course, everything leads me to believe that the connection is healthy and the stream is working. There's a

New to Ruby, getting "Application error (Rails)" when trying to access the page. Noticed in apache logs permissions denied problem to the fastcgi.crash.log, fixed that with chmod 777, now it just shows the pid that failed....what do I do now? Thank you. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because

I know that windows exe files can be run using Wine, but I have a windows program I would like to run under PCLINOS and the update/patch is in the form of a .com file. Can a file of this type be used for the update/patch in Wine ?

Hello again, I have been working on the Rice Encoder/Decoder now since my first post. However, I can't identify what's wrong with it. I was hoping there might be someone out there interested in answering my questions outside of this forum. I am not very good at programming at all, but I really want to see this project come together with my own work. (i.e. I don't want someone just

Hi: Since icecast2 is still heading to an initial release, there's no official guide for this stuff, but there is a bit of stuff out there. First, lets clarify what you want to do. When you say "CD content", I assume you mean audio CD's. To provide a stream requires two parts - a source or streamer, and a server. The source is equivalent to a radio studio, the server is

Thanks, all, for the pointers. I think I have everything configured properly, but, something is obviously still wrong. I'm using Kerry's guide with these xml files: - Sample icecast.xml - Configuration for Streaming Live Audio I started icecast & ices as directed. I then started xmms and configured the output plugin to be the OSS driver. I'm playing a music cd. This is all on my

Should I actually have a "radiofree.ogg" file being written on my Linux box? If so, I don't see it. I'll try a different player as well. --- Kerry Cox <kerry.cox@ksl.com> wrote: > Winamp3 is broken according to some posts here. Try > Winamp 2.91 or the > latest XMMS. Of course, XMMS requires the xmms-mp3 > libraries. > Try that and see if it helps. > KJ

I''m just at the "reading various rails tutorials" stage. One thing that has puzzled me a couple of times so far is the fact that the creation of the database is not part of the "migration". The steps as I''ve seen them are always: 1) $ rails myapplication 2) $ mysqladmin yadda yadda to create a table 3) $ script/generate migration myWickedTable 4) put rows

Dear R-list, Seems simple but have tried multiple approaches, no luck. I have a list of column names:

Hi everyone, this is my first time using r and I think I'm overlooking something small and I just need some help seeing it. I have a file in notepad that I need to read into r. > ceosalary<-read.table(file="C:/Users/mz106_010/Desktop/ceosalary.csv",header > = TRUE,sep="\t") Error in file(file, "rt") : cannot open the connection In addition: Warning

I have the following helper method in application_helper.rb: def format_date(date) day = to_s(date.day) month = to_s(date.month) time = to_s(date.time) date = day + "/" + month + " - " + time return date end I am trying to call this method in a view like this: <%= format_date(bounty.created_on) %> create_on is a timestamp in mysql. I am