search for: databs

Hi, ?In the example you provided, it looks like the dates in Date2 happens first.? So, I changed it a bit.? DataA<- read.table(text=" ID,Status,Date1,Date2 ??? ??? ?????? 1,A,3-Feb-01,15-May-01 ??? ??? 1,B,15-May-01,16-May-01 ??? ??? 1,A,16-May-01,3-Sep-01 ??? ??? ??? ??? ??? 1,B,3-Sep-01,13-Sep-01 ??? ??? ??? ??? ??? 1,C,13-Sep-01,26-Feb-04 ??? ??? ??? ??? ???

Hello all, I have a data frame dataa: newdate newstate newid newbalance newaccounts 1 31DEC2001 AR 1 1170 61 2 31DEC2001 VA 2 4565 54 3 31DEC2001 WA 3 2726 35 4 31DEC2001 AR 3 2700 35 The following gives me the balance of state AR:

i am working with two sets of likert scale type (4 distinct values) data: dataA <- rep(1:4, c(3,2,2,4)) dataB <- rep(1:4, c(5,4,3,2)) i can now (bar)plot both of these separately and compare the distributions. plot(table(dataA), type='h') plot(table(dataB), type='h') is there a way to plot both of them in one plot, so that the bars for value "1" (dataA: 3,

I would like to merge two dataframes, but i have a condition that needs to used for the merge as well. the rows (observations) in each dataframe are identified by each person's ID and by the date of the observation. Basically I would like it to be merged based on both ID (exact match) and date (a condition where one dataframe's date must be after the other dataframe's date).

I want to work on Ruby and Rails. And Please tell me that Rail is necessary to connecting between Ruby and MySQL Database. Shakeel -- Posted via http://www.ruby-forum.com/.

Dear I am using the 'as.dendrogram' function from the 'stats' library to convert from an hclust object to a dendrogram with a dataset of size ~30000 (an example code is below). I need the dendrogram structure to use the "dendrapply" and "attributes" functions and to access the child nodes, I do not need any of the plot properties. The problem is that it

Greetings everyone, I'm trying to add a specific table or a specific number of rows (e.g.44) to a table with no success. This is my basic table > head(dataA) year plot spp prop.B DCA1 DCA2 DCA3 DCA4 1 2000 1 a1 0.031079 -0.0776 -0.0009 0.0259 -0.0457 2 2000 1 a2 0.968921 -0.0448 0.1479 -0.1343 0.1670 3 2000 2 a1 0.029218

Hello, I'm trying to run a lagsarlm (maximum likelihood estimation of a spatial lag model) in the spdep library ; but R gives following error message: Error in solve.default(inf, tol = tol.solve) : system is computationally singular: reciprocal condition number = 4.20137e-12 I get the same message when I try to run de lagsarlm with a bigger data set (4333 regions). The command

In my app, for three models: foo,bar and baz, the database connection is made to a different database and hence in model code: class Foo < ActiveRecord::Base establish_connection :diff_database end class Bar < ActiveRecord::Base establish_connection :diff_database end class Baz < ActiveRecord::Base establish_connection :diff_database end Now, the problem is, if is use the above

Hi, I want to save an array(say, array[6,7,8]) write a cvs file. How can I do that??? can I write in one file? if I could not write in one file, i want to use a loop to save in different files (in the array[6,7,8], should be 8 csv files), such as the filename structure should be: file ="filename" +str(i) +"." +"csv" Many thanks. [[alternative HTML version

I have just tried to update the version of R on our system, and when I did ``make'', I got the following error message: ===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+=== gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -g -O2 -c platform.c -o platform.o In file included from /usr/include/netinet/in.h:41, from

I have two dataframes, the first column of each dataframe is a unique id number (the rest of the columns are data variables). I would like to figure out how many times each id number appears in each dataframe. So far I can use: length( match (dataframeA$unique.id[1], dataframeB$unique.id) ) but this only works on each row of dataframe A one-at-a-time. I would like to do this for all of

Hello to All. I have a system with FreeBSD 6.1 Release, Dovecot 1.0 Release Candidate 7. I am a novice user in unix world and when my first deal with with Dovecot is Virtual users. User databes in master.passwd file (like a /etc/master.passwd) created by "pw". All works fine, BUT --- If user exclusivly virtual (there is no user with same name in system) IMAP folders are created normal

Does someone here configured RealTime Extensions using ODBC connecting to Oracle DB? Im having a problem in dialplan patterns, it doesnt work. Pls. help! -Chris __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

Hello! If I have a matrix as 1 2 2 3 and I want to change the value 2 in 0, what can I do? Thank you -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !)

Hi I just setup a server (Apache 2.2, mod_proxy_balancer, mongrel_cluster) with 2 Rails applications according to this excellent Post: http://blog.codahale.com/2006/06/19/time-for-a-grown-up-server-rails-mongrel-apache-capistrano-and-you Everythings works great, but after a long inactive period (say one night), the first 3 connections allways get an Error 500 Excerpt from production.log: ...

I'm wondering how prevalent the practice of physically segregating voice and data networks is in the Real World. What are the factors that typically lead to such a decision? DIscussions of pros and cons are most welcome by me. Experiences, anybody? -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3234

Hello, (first post) You probably don't want to hear about my Linux-related story, so I'll cut telling you that about 5 months ago I switched from XP to Ubuntu. I've been a C/C++ programmer since I was 13 (2 years go), so I consider myself to understand a great deal of things (but hey, what is my opinion worth nowadays?) Anyway, In this post I'd like to report my Successes and

THE SCHEMA IN THE MODEL a small write up on ''putting the schema in the model'' This is a write up on an issue best covered in a mailing list thread of Januari 2006 (see the links in the text), I repost it because I think it deserves a place on the agenda. == Why? == I was switching back and forward between the model files and the schema.rb -- off course I have

Hi, I'm new to R and would like to know, how one can populate the list with array data. I'm reading a tab separated table in R. The data in the table looks something like this. #Table Data Comp    A    B    C Extracellular    103    268    535759 Nucleus    45603    47783    442744 #R code myData <- read.table("table.data",                 header=T,