dir2dfList: Turn a directory of flat files into a list of data.frames

In brooksandrew/Rsenal: Rsenal (arsenal) of assorted R functions developed over the years

Description

Useful to prepare data for tableNet

Usage

dir2dfList(dfdir, ext = ".txt", exclude = NULL, ...)

Arguments

dfdir	character string of the directory where you want to load flat files
ext	file extention on the type of files to load. Usually .csv or .txt
exclude	character string of table names to be excluded from app. Needs to be specified to NULL or a character vector or else ... arguments will not be handled properly.
...	parameters to pass to read.delim. Commonly nrow, sep,

Value

list of data.frames

See Also

tableNet isKey

Examples

## Not run: 
## download some baseball data. NOTE This will download 30MB of data (25 csv files) into a temporary directory
temp <- tempfile()
localDataDir <- paste0(tempdir(), '\\lahman2012-csv-onYourComp.zip')
download.file('http://seanlahman.com/files/database/lahman2012-csv.zip', localDataDir)
unzip(localDataDir, exdir=paste0(tempdir(), '\\lahman2012-csv-onYourComp')) ## may not be necessary

## create a list of data.frames from .CSVs
dfL <- dir2dfList(paste0(tempdir(), '\\lahman2012-csv-onYourComp'), ext='.csv', exclude=NULL, sep=',', stringsAsFactors=F)

## End(Not run)

brooksandrew/Rsenal documentation built on May 13, 2019, 7:50 a.m.