similar to: Sampling with unequal probabilities

Displaying 20 results from an estimated 400 matches similar to: "Sampling with unequal probabilities"

2009 Jul 30
1
ask help about boxplot , different list variation into the tick of x-axis?
Hi ,everyone. I want to draw a boxplot figure, main script shown as below. when I run the command "boxplot(bjavee~yearname)",it is wrong with the error information " model.frame.default(formula = bjavee ~ yearname) : variation 'bjavee' list is wrong". I want to add the yearname as the x-axis tick. And yearname is a array with the length 12,while bjavee is a 5*12
2009 Jul 30
0
how to add the x-axis information
Hi ,everyone. I want to draw a boxplot figure, main script shown as below. when I run the command "boxplot(bjavee~yearname)",it is wrong with the error information " model.frame.default(formula = bjavee ~ yearname) : variation 'bjavee' list is wrong". I want to add the yearname as the x-axis tick. And yearname is a array with the length 12,while bjavee is a 5*12
2012 Oct 11
1
Problems with getURL (RCurl) to obtain list files of an ftp directory
Dear all, I have a problem with the command 'getURL' from the RCurl package, which I have been using to obtain a ftp directory list from the MOD16 (ET, DSI) products, and then to download them. (part of the script by Tomislav Hengl, spatial-analyst). Instead of the list of files (from ftp), I am getting the complete html code. Anyone knows why this might happen? This are the steps i
2009 Feb 05
0
CESA-2009:0256 Critical CentOS 5 x86_64 firefox - security update
CentOS Errata and Security Advisory CESA-2009:0256 firefox security update for CentOS 5 x86_64: https://rhn.redhat.com/errata/RHSA-2009-0256.html The following updated file has been uploaded and is currently syncing to the mirrors: x86_64: updates/x86_64/RPMS/firefox-3.0.6-1.el5.centos.i386.rpm updates/x86_64/RPMS/firefox-3.0.6-1.el5.centos.x86_64.rpm
2011 Oct 06
2
More changes on yum.puppetlabs.com
Greetings, I''d like to remove the cruft (no longer maintained) areas of yum.puppetlabs.com. I fear they only cause confusion and offer less-than-desirable experience for our users. I''d like to remove /base /prosvc /porsvc.unsigned /SRMS /sources I''d like to do this some time next week. The stuff mostly found in base is available elsewhere and signed properly. The
2006 Feb 02
2
Request for users of my R-Tcl/Tk examples, limmaGUI or affylmGUI
[PLEASE REPLY _OFF_ THE LIST, i.e. DON'T CC to r-help at ...] Hi, I don't see this sort of thing very often on the mailing lists, so list moderators and others should feel free to tell me if it breaches list etiquette and/or delete my post if necessary. But I can't see what harm it could do... I am just wondering approximately how many people use / have used some of the R stuff
2014 Jul 03
0
SCL SRPMS repos URL?
What is the correct URL for the SRMS for packages found in: http://mirror.centos.org/centos-6/6/SCL/ ? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada
2010 Jun 23
1
Plotting Data on a Map
Hi: I am practicing with the attached shapefile and was wondering if I can get some help. Haven't used 'rgdal' and 'maptools' much but it appears to be a great way bring map data into R. Please take a look at the comments and let me know if I need to explain better what I am trying to accomplish. library(rgdal) library(maptools) library(ggplot2) dsn="C:/Documents and
2010 Oct 02
1
RE : Re: differential billing
Stop advertising. Le 26 sept. 2010 09:46, "Faisal Hanif" <faisal at vopium.com> a ?crit : Hi Abdul-Basit, If you need only different intervals of billing you can easily do it using any AGI as we are doing it in Perl AGIs using post call billing. But if you need realtime billing then the most stable and flexible option is to use FastAGI+ AMI. I have tested it in JAVA and it
2009 Jul 20
0
No subject
POTS line already did. It's like a zombie channel. When this happens we issue "hangup request DAHDI/x-x". Anyone faced similar issue? Current configuration: Ubuntu 10.04 64 bits, Asterisk 1.6.2.7, DAHDI 2.3.0. Thank you, Alex Saavedra --0016364d1dc91459020496ed0bbe Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div
2007 Apr 25
2
levelplot and unequal cell sizes
I am using levelplot() from lattice with grids that have unequal cell sizes. This means that the boundary between two cells is not always half-way between nodes, as levelplot() assumes. The result is that some cell sizes are rendered incorrectly, which can be painfully obvious if using relatively large cells. Is there any work-around? I am using the conditioning capability of lattice and
2002 Dec 13
1
histogram bug?: type='count', unequal breaks
I ask for a histogram of counts with slightly uneven breaks but histogram() ignores the 'type' argument and provides density scaling instead. x = sample(1:3, 100, replace=TRUE) histogram( ~ x, breaks=c(0,1.5,2.5,3.5), type='count') My real application has time data with month boundaries for the breaks and I DO want counts on the y-axis. A work-around is not difficult but
2003 Oct 06
0
randomizing within factors and combining unequal-sized arrays
Dear R folks - Sorry to be so dense, but can you help me with two programming problems? 1. Randomizing within factors. I have factored the values in an array according to a series of ranked breakpoints. Now I want to randomize the values that fall within each of the breakpoint boundaries, without replacement. I want to end up with an array in which the values within each factored category
2010 Aug 14
0
Unequal variance ANOVA using gls function in nlme
Hi I am trying to run an ANOVA on data with unequal variance. I am new to nlme, but to my understanding I need to use the gls function. I have single response variable (distance which is continuous) and the explanatory variable is individual ID (class variable: individuals differ in the variance in their distance values hence the need to using nlme). So I would create a model
2011 Aug 28
1
comparing two unequal matrices without for loop?
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2005 Dec 17
0
- McNemar with unequal sample sizes
Hi, i need to test the equality of proportions in a paired case, like here: after before + - + 10 14 - 5 53 So usually i use the mcnemar.test(stats). Due to mortality, I now got the problem that my sample sizes in both factors are not equal any more -- there are less cases in the "after" condition. I already learned that Ekbohm (1982) and Marascuilo adressed the problem
2010 Feb 12
1
how to read csv file having variables unequal column sizes
Dear R helpers   Suppose e.g. I have a csv file having three variables defined and each of these variables have data items of say 40, 50, 45 length. When I open this csv file in 'R', I get 10 trailing 'NA's under first column and 5 'NA' s in case of 3rd column.   How do I get rid of these NA's s.t. when I read the first column, there should be only 40 data items, 2nd
2007 Jun 28
1
unequal variance assumption for lme (mixed effect model)
Dear Douglas and R-help, Does lme assume normal distribution AND equal variance among groups like anova() does? If it does, is there any method like unequal variance T-test (Welch T) in lme when each group has unequal variance in my data? Thanks, Shirley
2013 Apr 17
1
Q-Q Plot for comparing two unequal data sets
Hello All, Would anyone be able to help me understand how R computes a quantile-quantile plot for comparing two data samples with unequal sample sizes? Normally, the procedure should be to rearrange the larger data sample into n equally-spaced parts using interpolation, where n is the sample size of the smaller sample, and then plot the matching data pairs. I tried using different plotting
2016 Apr 10
1
working with unequal rows
Hi I have a data frame with rows specifying companies (codes are assigned to companies) and columns specify months (monthly data). The data is based on male (M) and female (F) information for each month. Following is an example of how my data looks like: 01 02 03 04 001 M M M na 001 F M M M 002 M na F F 003 F F F M 003 F F M na 003 M