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Folks, I have a very basic question. The solution eludes me perhaps because of my own lack of creativity. I am not attaching a fully reproducible session because the issue may well be becuase of the way the data file is, and the data file is large (and I don't know whether I can legally distribute it). If people can suggest things that might be wrong in my data or the way that I am reading it,

Hi R users, I have a matrix "m" of the type: m X4.20.2010 X4.19.2010 X4.16.2010 [1,] 0.008319468 0.00000000 -0.008250825 [2,] 0.005574136 0.01816118 0.073081608 [3,] -0.047830688 0.01612903 -0.030239833 [4,] NA NA NA [5,] 0.008746356 0.02848576 -0.025566107 [6,] -0.007990868 0.00000000 -0.026666667 I want to get the sum of each column. Normally

Hi r users, I am trying to compute the "moving variance" of a large matrix. I now use a loop but I am looking for a faster solution. Here is a sample of the code. Source= matrix(rnorm(400),ncol=100) variances= matrix(rep(NA,4*100),ncol=100) for (i in 1:80) {variances[,i]=apply(Source[,i:(i+80)],1,var)} any idea? Many thanks in advance. Vincent. -- View this message in context:

Hi all, I am dealing with very large numbers but I am only interested in their last digits. > 244^244 [1] Inf As far as I can tell, the largest number R can take has 308 digits (1+E308). Is there a way I could see the last digits only of 244^244? Many thanks for your help. Vincent Deluard, CFA. -- View this message in context:

...petr.pikal at precheza.cz> wrote: > From: Petr PIKAL <petr.pikal at precheza.cz> > Subject: Re: [R] / Operator not meaningful for factors > To: "John Kane" <jrkrideau at yahoo.ca> > Cc: r-help at r-project.org, "vincent.deluard" <vincent.deluard at trimtabs.com> > Received: Tuesday, May 4, 2010, 3:38 AM > Hi > > r-help-bounces at r-project.org > napsal dne 04.05.2010 00:50:00: > > >? I think that you are correct.? R has the > annoying habit of converting > > character data to factors when you don't want it to...

Hi R users, I have a matrix of data similar to: > y=matrix(rnorm(55),ncol=5) I would like to know to which decile each number belongs compared to the numbers in its column. Say y[1,1] is the third decile among y[1:11,1] and y[2,1] is in the second decile I would like get a matrix that would return their ranks in decile, i.e., y[1,1] -> 3 y[2,1] -> 2 Your help is much appreciated!

Hi, I am trying to run a panel regression where I have a matrix of observations and a matrix of independant variables - examples would trying to predict countries's GDP with their data on education, FDI, tax rates, over time. For the purpose of simplicity, my data would be: dep = matrix(rnorm(50),ncol=5) indep1 = matrix(rnorm(50),ncol=5) indep2 = matrix(rnorm(50),ncol=5) >From what I

Hi R-users, I have a csv file that contains weather observation (rows) by days (in columns). I open using: > temp = read.csv("Weather.csv", sep=",") and read: X X1.Jan X2.Jan X3.Jan X4.Jan 1 Min 2 3 4 1 2 Max 6 10 8 6 3 Forecast Min 3 1 1 3 4 Forecast Max 8 7