search for: yasir

Displaying 20 results from an estimated 41 matches for "yasir".

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2008 Aug 11
2
generating a random signal with a known correlation
Hi, How can I generate a random signal that's correlated with a given signal at a given correlation (say 0.7)? I've been looking at rmvnorm etc but don't seem to figure it out. Thanks ----- Yasir H. Kaheil Columbia University -- View this message in context: http://www.nabble.com/generating-a-random-signal-with-a-known-correlation-tp18932541p18932541.html Sent from the R help mailing list archive at Nabble.com.
2009 Jan 09
3
create sequences from two "from" and "to" vectors
hi all, how can I create sequences that start from a known vector, say x1 and end with another say x2- also suppose all the sequences will be the same length. I don't want to use a for loop x1<-c(1,2,3,4); x2<-(3,4,5,6); what I want is 1 2 3 4 2 3 4 5 3 4 5 6 Thanks ----- Yasir H. Kaheil Columbia University -- View this message in context: http://www.nabble.com/create-sequences-from-two-%22from%22-and-%22to%22-vectors-tp21380194p21380194.html Sent from the R help mailing list archive at Nabble.com.
2012 Jul 12
6
read.table with numeric row names
I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used "r <- read.table("a.txt", header=T)" The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. "plot(colMeans(r)~names(r))",
2006 Mar 10
0
Re: Hardware requirements to run Windows on Xen
...9;'re set. One gotcha is you may need something simple like a celeron d chip to get your motherboard to boot to get the bios update installed. (As the 3 montherboards I''ve seen won''t boot presler chips without bios update. Adam Wendt IPCoast, Inc. On Fri, 10 Mar 2006 16:45 , Yasir Assam <list1@endlessvoid.com> sent: >Hello, > >Apologies if this has been asked before. > >I''ve never used Xen before and I''d like to buy a new machine to try it >on. I''d like to run Windows and Linux on it. > >I''ve read online tha...
2004 Feb 08
1
Registering SJPhone with Asterisk
2008 May 05
2
bwplot
Hi, I have 2 questions about bwplot in R : 1) How to change the order of my different boxes in the graph ? 2) How to rename the names of the differents boxes ? because I know how to do that with boxplot (using names) but I do not find the equivalent parameter in bwplot. thanks, C?dric
2008 May 08
1
miniscule font size on R console output
Hi, I am having a situation where I cannot change the output size of the R console. I have played around with the font format menu but the changes are only reflected to the script that I type in but not to the output. Everytime I run a script, I have to go back to font format to increase the output script, which is currently showing up as small as the dust on my computer screen. I have mac by
2008 May 16
2
How to extract estimates, Std. Error, t Value and Pr(>|t|) from summary
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2008 May 23
1
Question about Runuran (Triangular Distribution)
The Runuran package includes a simulation for the Triangular Distribution, urtriang. But I didn't find an analogue of the q* functions (rnorm - qnorm, runif - qunif), that would invert the CDF (?uqtriang). Are there any such functions? Alberto Monteiro
2008 May 23
1
SVD on a matix
Hi All, I performed an svd on a matrix X and saved the first three column of the left singular matrix U. ( I assume that they correspond to the projection of the matrix on the first three eigen vectors that corresponds to the first three largest eigenvalues). I would like to know how much variance is explained by the first eigenvectors? how can I find that. Thanks for your help -- View this
2008 May 24
1
R-Excel Macro Problem
I'm trying to write R functions into VBA code. I've done this many other times in other documents and everything has run great. But today I keep recieving an error message "Run-time error '1004': Application-defined or object-defined error." Has anyone else encountered this same error message? I do not recieve this error in the document when running regular VBA code.
2009 Jan 26
0
Spectral analysis with mtm-svd Multi-Taper Method Combined with Singular Value Decomposition
Hi list, Does anyone know if there is a library in R that does MTM-SVD method for spectral analysis? Thanks ----- Yasir H. Kaheil Columbia University -- View this message in context: http://www.nabble.com/Spectral-analysis-with-mtm-svd-Multi-Taper-Method-Combined-with-Singular-Value-Decomposition-tp21671934p21671934.html Sent from the R help mailing list archive at Nabble.com.
2012 Jul 10
1
info about R arulesSequences
Hi all, I'm new with R, recently I began to use the package "arulesSequences" but the algorithm cspade give me this error: Error en makebin(data, file) : 'sid' invalid when I did executed this script, x = read_baskets("transactions.basket",sep=",",info=c( "eventID", "sequenceID","SIZE")) s <- cspade(x, parameter =
2012 Jul 11
2
replacing NaN for every attribute in my data
Hi, I have a list called ds which has the following attributes: attributes(ds) $names [1] "adj.r.squared" "fstatistic" "intercept" "slope" [5] "std.error" "tstatistic" I want to replace all the NaN is ds with 0, and after searching past posts I found I can hardcode it like this:
2012 Jul 19
2
change file name from file0.1_data.RData to file1_data.Rdata
Dear All, I want to change file names. I have file0.1_data.RData (I have several files whose names are file0.x_data.Rdata) I want to rename it to file1_data.RData How can I do it? Thank you for saving my time! [[alternative HTML version deleted]]
2012 Jul 07
1
gem 'therubyracer' installing error in Windows
...my pc, that''s why it can''t install libv8. After installing python, libv8 was installed successfully. Now it''s trying to install the "therubyracer" but failing with error. Anyone knows what can be done to get the twitter bootstrap to work in windows? Thanks Yasir Adnan twitter.com/yasiradnan -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/QBXWOxVwCfEJ. To post to this group, send email to rubyonrai...
2008 May 11
1
Creating data.frames dynamically
I have time series data in named vectors. They are all the same length for the same dates. The dates are in a separate vector. I want to create a vector of numeric data for every named series, associated with the dates in a data.frame. So if... Names <- c("a", "b", "c") d <- data.frame(dates=Dates, a=vector(mode="numeric", length=length(Dates),
2008 May 16
1
Lattice box percentile plot
Dear Nabble. I am trying to draw a box percentile plot with trellis using the panel in Hmisc. I really want to colour the plots in. I can alter several of features of the plot by changing the trellis par settings but I just can’t fill the shape in. Here is some example code which alters line colour and dot symbol: require(lattice) require(Hmisc)
2008 Jul 14
2
Insurance review statistical methods
Hi R users: I will like to know if somebody works on insurance statistics (actuarial problems) and had use TRICAST, and can tell me if with all the R tools it can be build a solution like TRICAST or similar. In a word: Do you think that R has all the statistical tools (I mean modeling tools) to make a job similar to TRICAST? Does TRICAST has modeling tools that are not implemented on R yet?
2008 May 07
2
pivoting - summing up factors
Hi I would like to know how to pivot a table that will sum the number of plants (a or b) for each location (x,y,z) I have read on the listserve similar questions but which involve summing up numbers rather than factors. I have also read about the R package reshape on the listserve but wanted to know if there's a way to do it easily without the package Thanks for the help! location plant x