search for: freedman

Displaying 20 results from an estimated 80 matches for "freedman".

2009 Jan 07
12
glusterfs alternative ? :P
I know that this is not the appropriate place :). You know someone can alternative to gluserfs ?:) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20090107/63b68a0d/attachment.html>
2008 Jul 20
2
fill in area between 2 lines with a color
...e,y.high,type='n',ylim=c(100,400),ylab='Y Range',xlab='Age (years)') lines(age,y.low,col='grey') lines(age,y.high,col='grey') Is it possible to fill the area between the 2 lines filled with, for example, 'grey30' ? thanks very much in advance, David Freedman ----- David Freedman Atlanta -- View this message in context: http://www.nabble.com/fill-in-area-between-2-lines-with-a-color-tp18556096p18556096.html Sent from the R help mailing list archive at Nabble.com.
2010 Apr 27
5
get means of elements of 5 matrices in a list
...of 5 matrices that are each 5 x 6. I'd like to end up with a 5 x 6 matrix that contains the mean value of the 5 original matrices. I can do this by brute force, but there must be a better way than making each matrix into a vector and then remaking a matrix thanks very much for any help david freedman ll=list(structure(c(9.7, 17.6, 20.8, 24.1, 33.8, 14.5, 25.7, 29.8, 33.6, 44.8, 21.8, 32.6, 37.5, 40.9, 53.3, 16.7, 26.1, 29.5, 32.7, 42.6, 26.2, 34.3, 37, 39.8, 47.1, 31.9, 40.3, 43.3, 46.2, 54.1 ), .Dim = 5:6), structure(c(9.4, 17.7, 20.7, 24.1, 33.7, 14.5, 25.7, 29.8, 33.6, 44.8, 21.8, 32.7,...
2008 Sep 05
8
Gluster update | need your support
Dear Members, Even though Gluster team is growing at a steady phase, our aggressive development schedule out phases our resources. We need to expand and also maintain a 1:1 developer / QA engineer ratio. Our major development focus in the next 8 months will be towards: * Large scale regression tests (24/7/365) * Web based monitoring and management * Hot upgrade/add/remove of storage nodes
2010 Nov 29
3
data.frame and formula classes of aggregate
...in the group for the variable with missing values. But, the formula class output seems to delete the entire row (missing and non-missing values) if there are any NAs. Wouldn't one expect that the 2 forms (data frame vs formula) of aggregate would give the same result? thanks very much david freedman, atlanta -- View this message in context: http://r.789695.n4.nabble.com/data-frame-and-formula-classes-of-aggregate-tp3063668p3063668.html Sent from the R help mailing list archive at Nabble.com.
2011 Nov 14
1
Problem with edit()
...tor) : unexpected input occurred on line 4 use a command like x <- edit() to recover When using the “x <- edit” (or in this case, test.func <- edit()), the comment “This is a test” will disappear from the edited function. Does anyone have any insight into this problem? Thanks, Jeff Freedman _____________________________ Jeff Freedman Lead Research Scientist AWS Truepower, LLC 463 New Karner Road Albany, NY 12205 phone: 518-213-0044 (x1049) fax: 518-640-6897 [[alternative HTML version deleted]]
2009 May 25
3
long format - find age when another variable is first 'high'
...Cholesterol) is >= 130 mg/dL; for some children, this may never happen. I can do this with transformBy and ddply, but with 10,000 different children, these functions take some time on my PCs - is there a faster way to do this in R? My code on a small dataset follows. Thanks very much, David Freedman d<-data.frame(id=c(rep(1,3),rep(2,2),3),age=c(5,10,15,4,7,12),ldlc=c(132,120,125,105,142,160)) d$high.ldlc<-ifelse(d$ldlc>=130,1,0) d library(plyr) d2<-ddply(d,~id,transform,plyr.minage=min(age[high.ldlc==1])); library(doBy) d2<-transformBy(~id,da=d2,doby.minage=min(age[high.ldlc==1...
2010 May 06
4
sample size for survival curves
Dear R users, I am not asking questions specifically on R, but I know there are many statistical experts here in the R community, so here it goes my questions: Freedman (1982) propose an approximation of sample size/power calculation based on log-rank test using the formula below (This is what nQuery does): (Z(1-?/side)+Z(power))^2*(hazard.ratio+1)^2 N = --------------------------------------------- (2-p1-p2)*(hazard.ratio...
2010 Feb 06
4
Plot of odds ratios obtained from a logistic model
Hi all! I am trying to develop a plot a figure in which I would like to show the odds ratios obtained from a logistic model. I have tried with the dotplot option but no success. Could you help me? Is there any option when modelling the logistic model in R? Thank you in advance
2002 Mar 01
3
Setting working directory (PR#1338)
Full_Name: Jeffrey M. Freedman Version: 1.4.1 OS: Mac OSX Submission from: (NULL) (169.226.200.51) I'm running R version 1.4.1 (NOT DARWIN VERSION) and it crashes every time I set a working directory (either from the menu or using setwd) to a path that is longer than a certain number of characters. This was not a problem i...
2009 May 01
2
sequence number for 'long format'
...easurement, starting at 1 for a person's first measurement. I can do this with the by function, but there must be an easier way. Here's my code - id is id number, age is the age of the person, and seq is the sequence variable that I've created. Thanks very much for the help. david freedman, atlanta ds=data.frame(list(id = c(1L, 1L, 1L, 1L, 8L, 8L, 16L, 16L, 16L, 16L, 16L, 19L, 32L, 64L, 64L, 64L, 64L, 64L, 64L, 64L, 64L, 64L, 79L, 79L, 80L, 80L, 80L, 80L, 85L, 86L, 96L, 96L, 96L, 103L, 103L, 106L, 106L, 106L, 106L, 106L, 106L, 106L, 140L, 140L, 144L, 144L, 144L, 144L, 144L, 144L, 14...
2008 Feb 10
1
Using 'sapply' and 'by' in one function
...tand the error message - the length of 'Pred' is 10 while the length of each sex group is 5, but I'm not sure how to correctly write the 'by' function to use 'sapply' inside it. Could someone please point me in the right direction? Thanks very much in advance David S Freedman, CDC (Atlanta USA) [definitely not the well-know statistician, David A Freedman, in Berkeley]
2009 Mar 07
2
piecewise linear regression
....frame", row.names = c(NA, -16L)) with(d,plot(year,percent,pch=16,xlim=c(1988,2007))) m=lm(percent~ year + I(year-1996):I(year <= 1996), weights=1/se, subset=year>=1988, da=d); points(d$year,predict(m,dafr(year=d$year)),type='l',lwd=2,col='red') thanks very much David Freedman -- View this message in context: http://www.nabble.com/piecewise-linear-regression-tp22388118p22388118.html Sent from the R help mailing list archive at Nabble.com.
2008 Nov 06
3
unlist & dataframes
Dear all, I would like to know whether it is possible to unlist elements and keep the original format of the data. To make it more clear, let me give an exemple: I have a list l of dataframes that I created with apply but which looks like this: x1=data.frame(Name=LETTERS[1:2],Age=1:2) x2=data.frame(Name=LETTERS[3:4],Age=3:4) l=list(x1,x2) l [[1]] Name Age 1 A 1 2 B 2 [[2]] Name
2004 Dec 16
1
Problem with postscript graphics device driver
...et the following error message when I try to use the postscript function: Error in get(name.opt, envir = envir) : Object ".PSenv" not found This did not happen in previous versions of R (i.e. 1.9). I do not get this error message when using the pdf graphics device driver. Thanks, Jeff Freedman ---------------------------------------------- Jeffrey M. Freedman TEL: (518) 437-8712 Atmospheric Information Services FAX: (518) 437-8759 Suite 296 • CESTM 255 Fuller Road Email: jmf@atmosinfo.com Albany, NY 12203 Web: www.atmosinfo.com [[alternative text/enriched version dele...
2006 Nov 10
0
typo in hist.Rd (PR#9355)
'Freedman' is misspelled (as 'Friedman') in src/library/graphics/man/hist.Rd. As a result, the help page currently implies that breaks = "Fried" is a valid argument to hist, but results in an error: > hist(rnorm(100), breaks = "Fried") Error in match.arg(tolower(breaks),...
2010 Feb 04
1
replace a for loop with lapply or relative
...(i in 1:3){print(do.call(rbind,by(d[,i],d[,i+3],function(x)(c(min(x),max(x))))))} Is there a way to replace the ugly for loop in the last line with some type of apply function that would know that my continuous and indicator variable are 3 variables apart in the dataframe? Thanks very much David Freedman -- View this message in context: http://n4.nabble.com/replace-a-for-loop-with-lapply-or-relative-tp1469453p1469453.html Sent from the R help mailing list archive at Nabble.com.
2008 Oct 02
0
FW: Why does glusterfs not automatically fix these kinds of problems?
Fwd'ing this since it seems my reply and your response didn't actually go to the mailing list. -----Original Message----- From: Keith Freedman [mailto:freedman at FreeFormIT.com] Sent: Thursday, October 02, 2008 2:02 PM To: Will Rouesnel Subject: RE: [Gluster-users] Why does glusterfs not automatically fix these kinds of problems? At 08:47 PM 10/1/2008, you wrote: >Unison operates on the gluster mount, yes. My suspicion has been that...
2006 May 06
1
Fwd: Fun with TrippLite
...ast few months. Your help will be appreciated in rounding off this driver to a distributable state! Thanks, -- Peter Charles Lepple wrote: > > Peter, > > any objections to enabling the Tripp-Lite HID subdriver? > > ---------- Forwarded message ---------- > From: Jonathan Freedman <jef@pleiades.ca> > Date: Dec 15, 2005 1:20 AM > Subject: Re: [Nut-upsdev] Fun with TrippLite > To: Charles Lepple <clepple@gmail.com> > > > Hey > > So yeah. Instead of sleeping I decided to get this working. As you > mentioned, there appears to be a subdri...
2004 Feb 15
4
father and son heights
...ddress Book | Block Address | Report as Spam ] To: rhelp <r-help at stat.math.ethz.ch> Subject: Re: [R] father and son heights Actually, no. It's a data set that is used to teach Pearson's correlation coefficient in a popular statistics textbook - "Statistics" by Freedman, Pisani, et al. It contains over a thousand measurements of son's and their father's heights. I would like to find it in electronic form so that I can use it to prepare figures and examples for a lecture. If anyone knows where I could find it, please let me know. I've done a few G...