similar to: Change values in a dateframe

Hello I have the following problem : group the lines of a dataframe when no information change (Matricule, Nom, Sexe, DateNaissance, Contrat, Pays) and when the value of Debut of lines i = value Fin of lines i-1 I can obtain it with a do loop. Is it possible to avoid the loop ? The dataframe initial is df1 dput(df1) structure(list(Matricule = c(1L, 1L, 1L, 6L, 6L, 6L, 6L, 6L, 6L, 8L, 8L, 8L,

Hi I would like to eliminate a large number of lines of the dataframe df1 The lines to delete are given here by the values of Mat (ex : 2,4,7,10). but I have a large number (300) values of Mat dput(df1) structure(list(Mat = c(1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 11,

Hi all- I am wondering about using the mapply function to multiple data frames. Specifically, I would like to do a t-test on a subset of multiple data frames. All data frames have the same structure. Here is my code so far: f<-function(x,y) { test<-t.test(x$col1[x$col3=="num",],v$col2[x$col3=="num",],paired=T,alternative="greater") out<-test$p.value

I am new to R (ex SAS user) , and I cannot merge two data frames without getting duplicated rows in the results. How to avoid this happening without using the unique() function? 1. First data frame is called "tmv" with 6 variables and 239 rows: > tmv[1:10,] temps nom prenom sexe dist style 1 01:59:36 Cyr Steve H 45 free 2 02:09:55 Gosselin

Colleagues, I have generated several dummy variables: n$native0 <- 1 * (n$re=="white" & n$usborn=="yes") n$native1 <- 1 * (n$re=="afam" & n$usborn=="yes") n$native2 <- 1 * (n$re=="carib" & n$usborn=="yes") n$native3 <- 1 * (n$re=="carib" & n$usborn=="no") I would now like to combine these

Hy all, I wish to use a variable as rownames for a set of datas. By example : > nom<-"toto" > prenom<-"tutu" > res<-c(1,2) > res<-t(res) > res [,1] [,2] [1,] 1 2 > colnames(res)<-c(nom,prenom) > res toto tutu [1,] 1 2 > nom [1] "toto" > I wish to call the rowname by the

Hi everybody ! I'm desperately trying to install AsteriskNow Beta 6. I downloaded the iso file (version x86 32 bits) and burned it, then I tried on three different computers (from an old Pentium 4 to a brand new HP DL380 2xDual Core) and each time I got the same error... Shortly after the installation begins, after the probing of hardware component, the installer stops with the following

Hello, I should use R on cygwin. I have ever install cygwin and now I try to install R. I have read the R manual and particularly the part : Installation R under Unix but I improved some difficulties for succeed in this task. Actually I have create a R repertory where I have unzipped the file R-2.9.1.tar.gz. In this repertory I do ./configure in cygwin but some errors appear and I don't

Hi, I'm looking a wiki or share experience for replace NIS authentication by an existing Active directory Server (W2003). The problem is on the management of id and gid. How to move 1000 actual NIS users to AD ? How to keep the same id and gid for this 1000 users ? What's happen with nfs linux server and acess with gid and/id ? Use the same user/password for linux and Windows clients

I am running squid + sarg, how can I change the ip-address in the generated report into username? The users are free to surf the web anonymously, no need to provide a login or any authentication to the proxy. Thanks

Hello list I use sendmail-8.14.4-8.el6.x86_64 and I wonder how to restrict the number of emails sendmail sent over an hour. Is the define(`confMAX_QUEUE_RUN_SIZE', `200') command what I'm looking for? Thank you in advance. Nikos

Hi all, I''m using Rails/Mysql as development platform. the production server is under Rails/Oracle. Right now, i''m trying to install my application under the production server, the connection to orcale is fine via Rails, but i have a weird problem. example : here is a extract from my db scheme : Table User :_____________ id_user | first_name |

Hi, I have a model which has properties, these are your standard name/value pairs, but also have attributes that affect how I want to store them in ferret. I was using 0.9.5 with 0.2 of aaf, which seemed fine, I just copied and pasted (yes, I know, ick) the to_doc method and added code to iterate though the properties that that model had, and add relavent fields to the document. It seems

(I'm afraid this post didn't reach the list on last Wednesday, here it is again ) hi R-list, And sorry for my frenglish ! I am running R < Good Sport > release ( i386-w64-mingw32/i386 (32-bit) ) ) under Windows 7 Professional, Service Pack 1. My perl executable is ActivePerl build 817 [257965] (i.e. version 5.8.8.817). Usually it is working fine. Using the gdata ::read.xls

(For non native french speakers : that will be my only announce here in another language than english ;-) ) Le projet CentOS est heureux de vous annoncer la naissance du site http://fr.centos.org . En r?ponse ? la demande croissante de la communaut? des utilisateurs francophones de CentOS, le forum fr.centos.org a vu le jour. Nous profitons de cette annonce pour relancer l'appel aux

Hi, poids taille fumeur sexe sport etat 85 184 oui homme 1 malade 65 175 oui homme 1 malade 74 180 oui homme 2 gueri 79 175 oui homme 2 malade 71 165 non homme 3 gueri 80 185 non homme 3 gueri 75 180 non homme 4 malade 69 155 non homme 4 malade 74 168 oui

Meilleurs Voeux pour 2002 : année de mémoire, de mobilisation, d'action, de justice et de sérénité - Appel au soutien moral et financier ======================== M. Habib HAIBI, 7, Aguesseau St. 69007 LYON - France Tél. 00 33 4 72 73 19 08 - Fax 00 33 4 78 61 39 27 Email : haibi@free.fr http://haibi.free.fr Je suis qualifié pour exprimer mes voeux pour le Nouvel An à tous les survivants

Meilleurs Vœux pour 2002 : année de mémoire, de mobilisation, d'action, de justice et de sérénité - Appel au soutien moral et financier ======================== M. Habib HAIBI, 7, Aguesseau St. 69007 LYON - France Tél. 00 33 4 72 73 19 08 - Fax 00 33 4 78 61 39 27 Email : haibi@free.fr http://haibi.free.fr Je suis qualifié pour exprimer mes voeux pour le Nouvel An à tous les survivants

Dear all, I read.table a 17MB tabulator separated table with 483 variables(mostly numeric) and 15000 observations into R. This takes a few seconds with R 2.3.1 on windows 2000, but it takes several minutes on my Linux machine. The linux machine is Ubuntu 6.06, 256 MR RAM, Athlon 1600 processor. The windows hardware is better (Pentium 4, 512 RAM), but it shouldn't make such a difference.

My app is set up without database.yml in version control. I created a shared_path/config dir, and put database.yml in it. After I update the code, I want to link the app''s database.yml file to the shared config. So I added this task desc ''Copy the database config'' task :after_update_code, :roles => :app do run "ln -s #{shared_path}/config/database.yml