That seems to have worked, both in the new and old version of R. I'll do more unit testing on other files.
Thank you, Gabor. -----Original Message----- From: Gabor Grothendieck [mailto:ggrothendi...@gmail.com] Sent: Wednesday, February 11, 2015 10:22 AM To: Doran, Harold Cc: r-help@r-project.org Subject: Re: [R] sqldf() difference between R 3.1.2 and 3.0.1 On Wed, Feb 11, 2015 at 9:45 AM, Doran, Harold <hdo...@air.org> wrote: > I have a function written and tested using R 3.0.1 and sqldf_0.4-7.1 that > works perfectly. However, using this same code with R 3.1.2 and sqldf_0.4-10 > yields the error below that I am having a difficult time deciphering. Hence, > same code behaves differently on different versions of R and sqldf(). > > Error in sqliteSendQuery(con, statement, bind.data) : > error in statement: no such column: V1 > > > Reproducible example below as well as complete sessionInfo all provided below. > > > My function and code using the function are below. > > dorReader <- function(dorFile, layout, sepChar = '\n'){ > sepChar <- as.character(sepChar) > dorFile <- as.character(dorFile) > layout$type2 <- ifelse(layout$type == 'C', 'character', > > ifelse(layout$type == 'N', 'numeric', 'Date')) > dor <- file(dorFile) > attr(dor, "file.format") <- list(sep = sepChar) > getVars <- paste("select", > paste("substr(V1, ", layout$Start, ", ", > layout$Length, ") '", layout$Variable.Name, "'", > collapse = ", "), "from dor") > dat <- sqldf(getVars) > > classConverter <- function(obj, types){ > out <- lapply(1:length(obj),FUN = > function(i){FUN1 <- switch(types[i],character = as.character,numeric = > as.numeric,factor = as.factor, Date = as.character); FUN1(obj[,i])}) > names(out) <- colnames(obj) > as.data.frame(out) > } > dat <- classConverter(dat, layout$type2) > names(dat) <- layout$Variable.Name > dat > } > > ### contents of fwf file 'sample.txt' > 1234567 > 1234567 > 1234567 > 1234567 > 1234567 > 1234567 > 1234567 > 1234567 > > layout <- data.frame("Variable.Name" =c('test1', 'test2'), "Length" = > c(3,4), "Start" =c(1,4), "End" = c(3,7), "type" = c('N', 'N')) > > tmp <- dorReader('sample.txt', layout) sqldf is documented to use the sqliteImportFile defaults for file.format components. It may be that RSQLite 1.0 has changed the default for header in sqliteImportFile. Try replacing your statement that sets file.format with this: attr(dor, "file.format") <- list(sep = sepChar, header = FALSE) ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
