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R and Postgresql (DBI)
Ian Garcia
·
Jan 8, 2004
·
r-help
Hi, I'm running Debian (Sid), Postgres (7.3.4) and R (1.8.1). I get the following error when I tri to use DBI >library("DBI") > p <- dbDriver("PostgreSQL") Error in do.call(as.character(drvName), list(...)) : couldn...
extract data from a data.frame
Ian Garcia
·
Jan 12, 2004
·
r-help
Hi, I'm reading part of a table from postgres, so I'm getting a data frame. how can I extract the numerica values so I can operate on them. > res <- dbGetResult(mydata) > str(res) `data.frame': 5 obs. of...
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