similar to: sqldf hanging on macintosh - works on windows

Passing in two dates to a sql statement (sqldf). Is returning a factor. Tried setting back to a Date via as.Date, but get an error the error: character string is not in a standard unambiguous format. Any thoughts appreciated. Code/Results listed below: > summary(df.possible.combos) Date Hour Min. :2011-03-01 Min. : 0.00 1st Qu.:2011-03-23 1st Qu.: 5.75

This is my first post. I am running Mac OS X version 10.6.3. I am running R 2.11.0 GUI 1.33 64 bit. This may or may not be related to sqldf, but I experienced this problem while attempting to use an sqldf query. The same code runs with no problem on my Windows machine. Here is what happens: > r=sqldf("select ... ") Loading required package: tcltk Loading Tcl/Tk interface ... Then

trying to structure sql to merge two datasets. structure follows: dbs.possible.combos (all possible combinations of dates and places) Date Place 1/1/10 N-01 1/1/10 S-02 1/2/10 N-01 1/2/10 S-02 etc... dbs.aggregate (the raw data aggregated by date and location) Date Place Days 1/1/10 N-01 6 1/1/10 S-02 10 1/2/10 S-02 5 Trying to merge so I look-up the values for each possible combo dbs.final

Hello Group, I am having trouble with the sqldf package on unix. The same code works fine on windows. Silly Example script: # Load the package library(sqldf) # Use the titanic data set data(women) colnames(women) head(women) sqldf('select height, count(*) from women where height is not null group by weight') Unix Output and error: bash-3.00$ R --vanilla <testR.R

When I run sqldf to merge two datasets, it's changing the Date (class date) to a numeric value (class factor). Not sure why. Appreciate any insight. Console output for two datasets and the merged dataset (via sqldf) listed below. > summary(df.aggregate) Date Hour x Min. :2010-07-01 0 : 64 Min. : 0.00 1st Qu.:2010-07-25 1 :

Hi all, Please bear with me because I'm not all that familiar with R. I manage a research cluster that's running Red Hat 5.6 (64-bit), and we recently installed version 2.15.0 of R for some users. Here's how we built it: ./configure --prefix=/opt/shared/R/2.15.0 --with-tcltk --with-system-zlib --with-system-bzlib --with-system-pcre --with-lapack --enable-R-shlib When we ran

I have a file that I'm planning on manipulating with sqldf(). The header for this file is malformed, and I was wondering if there's a way to specify the values of the header ahead of time. I can see there are T/F options for header in sqldf(... list(header=T, ...), but was wondering if there's a way to explicitly stated what the header should be. Thanks, Andrew [[alternative HTML

sqldf is an R package for running SQL select statements on one or more R data frames. It is optimized for convenience making it useful for ad hoc queries against R data frames. Given an SQL select statement whose tables are the names of R data frames it: - sets up the database (by default it transparently sets up an in memory SQLite database using RSQLite; however, MySQL via RMySQL, can be

sqldf is an R package for running SQL select statements on one or more R data frames. It is optimized for convenience making it useful for ad hoc queries against R data frames. Given an SQL select statement whose tables are the names of R data frames it: - sets up the database (by default it transparently sets up an in memory SQLite database using RSQLite; however, MySQL via RMySQL, can be

A new version of sqldf, version 0.2-0, has been uploaded to CRAN and should be available on most mirrors by now. NEW - works with the new version of DBI package, DBI 0.2-5. The default action of this version of DBI quotes those column names in select statements that are SQL reserved words (rather than appending __1 to them which was the previous default action). As a result it should no

A new version of sqldf, version 0.2-0, has been uploaded to CRAN and should be available on most mirrors by now. NEW - works with the new version of DBI package, DBI 0.2-5. The default action of this version of DBI quotes those column names in select statements that are SQL reserved words (rather than appending __1 to them which was the previous default action). As a result it should no

RSQLite.extfuns provides SQLite extension functions for use with RSQLite. The package is a wrapper of extension functions written by Liam Healy and made available through the SQLite website (http://www.sqlite.org/contrib). You can make the extension functions available on a per db connection basis like this: library("RSQLite.extfuns") db <- dbConnect(SQLite(), dbname =

RSQLite.extfuns provides SQLite extension functions for use with RSQLite. The package is a wrapper of extension functions written by Liam Healy and made available through the SQLite website (http://www.sqlite.org/contrib). You can make the extension functions available on a per db connection basis like this: library("RSQLite.extfuns") db <- dbConnect(SQLite(), dbname =

I've been using sqldf heavily lately but have encountered problems with ordering of observations or calculating statistics such as max() and min() when the variable used is of class Date. For example, if I run the following code: =============== begin code ================= library(sqldf)

I'm getting an error message when using the new version of sqldf, > library(sqldf) > str(kdv) 'data.frame': 71 obs. of 3 variables: $ dpss: num 0.117 0.144 0.164 0.166 0.165 ... $ npdp: num 0.1264 0.0325 0.0109 0.0033 0.0055 ... $ logk: num 1.12 1.29 1.41 1.41 1.42 ... > test=sqldf("select * from kdv") Error in get("fun", env = this, inherits =

Hi, sqldf sounds like a very useful package but I don't even get the example to run: > a1s <- sqldf("select * from warpbreaks limit 6") Error in combine(FUN(...)) : argument "value" is missing, with no default > I am using R 2.6.1 on Windows Vista Business and have updated all packages. Some help would be very much appreciated. Many thanks, Werner

Dear All, Is sqldf equipped with delete queries? I have tried delete queries but with no success. Thanks in advance, Paul

I am using the example in this post: https://stat.ethz.ch/pipermail/r-help/2010-October/257204.html # create a file write.table(iris,"iris.csv",row.names=FALSE,sep=",",quote=FALSE) # this does not work # has the syntax changed or is there a mistake in my usage? # the line from the post above is: # read.csv.sql("myfile.csv, sql = "select * from file 2000,

Hi All, I have a very (very) large tab-delimited text file without headers. There are only 8 columns and millions of rows. I want to make numerous pieces of this file by sub-setting it for individual stations. Station is given as in the first column. I am trying to learn and use sqldf package for this but am stuck in a couple of places. To simulate my requirement, I have taken iris dataset as an

Hi, I post this message to the general r-help list hoping anyone within a wider range have suggestions: There are three ways to integration R and postgres, especially on 64bit Microsoft windows Platform, 1. via RODBC package, which has 32 bit and 64 bit version for windows 2. via RPostgres interface, which only has 32bit version currently 3. via plr for Greenplum, which only supports a