R equivalent of .first or .last sas operator

Posted by Giorgio Spedicato on Stack Overflow See other posts from Stack Overflow or by Giorgio Spedicato
Published on 2012-12-07T15:03:38Z Indexed on 2012/12/09 17:04 UTC
Read the original article Hit count: 401

Filed under:

sas

Does anybody know what is the best R alternative to SAS first. or last. operators? I did find none.

SAS has the FIRST. and LAST. automatic variables, which identify the first and last record amongst a group with the same value with a particular variable; so in the following dataset FIRST.model and LAST.model are defined:

Model,SaleID,First.Model,Last.Model
Explorer,1,1,0
Explorer,2,0,0
Explorer,3,0,0
Explorer,4,0,1
Civic,5,1,0
Civic,6,0,0
Civic,7,0,1

Related posts about sas

Scheduling of SAS generated codes in SAS DI studio to IBM TWS

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys, I`m sure some you might have used both SAS DI studio and IBM TWS. Has anone managed to run codes generated in SAS DI studio in TWS scheduler , What are the kind of issues you have faced? And it would be great if you could suggest possible solutions >>> More
Tutoriel SAS : Lire des classeurs Excel 2007 avec SAS 9.1, par Stéphane Colas

as seen on Developper.com - Search for 'Developper.com'
Bonjour, Retrouvez ci-dessous notre dernier tutoriel SAS : Lire des classeurs Excel 2007 avec SAS 9.1, par Stéphane COLAS. N'hésitez pas à donner votre point de vue Bonne lecture ... >>> More
Livre SAS : Économétrie théorie et application sous SAS, par V. Delsart, A. Rys et N. Vaneecloo

as seen on Developper.com - Search for 'Developper.com'
Bonjour, J'ai eu le plaisir de lire pour vous Econométrie théorie et application sous SAS, de Virginie Delsart, Arnaud Rys et Nicolas Vaneecloo. N'hésitez pas à régair ou poser des questions si vous souhaitez davantage d'informations Bonne lecture... >>> More
SAS unifie la vision des risques pour les banques avec SAS Risk Management for Banking

as seen on Developper.com - Search for 'Developper.com'
SAS unifie la vision des risques pour les banques Avec SAS Risk Management for Banking SAS lance SAS Risk Management for Banking, une solution intégrée dédiée à la gestion des risques dans le secteur de la banque. Cette solution exploite les fonctionnalités de la plate-forme SAS Business Analytics… >>> More
SAS Expanders vs Direct Attached (SAS)?

as seen on Server Fault - Search for 'Server Fault'
I have a storage unit with 2 backplanes. One backplane holds 24 disks, one backplane holds 12 disks. Each backplane is independently connected to a SFF-8087 port (4 channel/12Gbit) to the raid card. Here is where my question really comes in. Can or how easily can a backplane be overloaded? … >>> More

Developer IT

R equivalent of .first or .last sas operator - Developer IT

R equivalent of .first or .last sas operator

r

sas

Related posts about r

Related posts about sas

Scheduling of SAS generated codes in SAS DI studio to IBM TWS

Tutoriel SAS : Lire des classeurs Excel 2007 avec SAS 9.1, par Stéphane Colas

Livre SAS : Économétrie théorie et application sous SAS, par V. Delsart, A. Rys et N. Vaneecloo

SAS unifie la vision des risques pour les banques avec SAS Risk Management for Banking

SAS Expanders vs Direct Attached (SAS)?

Categories cloud