Re: [R] RODBC - address 0x407, cause 'memory not mapped'

Oh, forgot telling the specifications: R version 3.0.2 (2013-09-25) Platform: x86_64-pc-linux-gnu (64-bit) Database: Mysql ODBC Connector: libmyodbc I've configured ODBC Connection using this hot-to: https://help.ubuntu.com/community/ODBC -- View this message in context: http://r.789695.n4.na

[R] RODBC - address 0x407, cause 'memory not mapped'

Hi guys, I am running a simple R script using RODBC that follows: library(RODBC) ch <- odbcConnect("con") cust<- sqlQuery(ch, "select id_customer, first_name from customers limit 100") sales<- sqlQuery(ch, "select id_order, revenue from sales limit 100") - An

[R] Rows to Column

Hi all, I'm kinda new in R programming and I need some help preparing a database to run logistic regression. I have data in a tuple form: *id cat val* 1 A 2 1 C 4 3 B 1 5 A 2 6 A 3 6 B 5 6 C 2 8 B 5 8 D 2 9 D 3 and would like to have it like: *id catA