LaF: Fast Access to Large ASCII Files

Methods for fast access to large ASCII files. Currently the following file formats are supported: comma separated format (CSV) and fixed width format. It is assumed that the files are too large to fit into memory, although the package can also be used to efficiently access files that do fit into memory. Methods are provided to access and process files blockwise. Furthermore, an opened file can be accessed as one would an ordinary data.frame. The LaF vignette gives an overview of the functionality provided.

AuthorJan van der Laan
Date of publication2017-01-02 16:20:19
MaintainerJan van der Laan <djvanderlaan@unrealizedtime.nl>
LicenseGPL-3
Version0.6.3
https://github.com/djvanderlaan/LaF

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Files in this package

LaF
LaF/inst
LaF/inst/doc
LaF/inst/doc/LaF-benchmark.pdf
LaF/inst/doc/LaF-manual.pdf
LaF/inst/doc/LaF-manual.Rnw
LaF/inst/doc/LaF-benchmark.Rnw
LaF/inst/doc/LaF-manual.R
LaF/tests
LaF/tests/testthat
LaF/tests/testthat/test_fwf.R
LaF/tests/testthat/test_csv.R
LaF/tests/testthat/test.csv
LaF/tests/testthat/tmp.csv
LaF/tests/testthat/tmp.fwf
LaF/tests/testthat/test_skip.R
LaF/tests/testthat/test_conversion.R
LaF/tests/testthat/test_stats.R
LaF/tests/testthat/tmp.yaml
LaF/tests/testthat/tmp.bla
LaF/tests/testthat/test_trim.R
LaF/tests/testthat/test_levels.R
LaF/tests/testthat/test_meta.R
LaF/tests/test-all.R
LaF/src
LaF/src/Makevars
LaF/src/stringcolumn.h
LaF/src/LaF.cpp
LaF/src/conversion.h
LaF/src/fwfreader.h
LaF/src/csvreader.h
LaF/src/column.cpp
LaF/src/readermanager.cpp
LaF/src/stringcolumn.cpp
LaF/src/factorcolumn.h
LaF/src/csvreader.cpp
LaF/src/stats.cpp
LaF/src/intcolumn.cpp
LaF/src/doublecolumn.h
LaF/src/readermanager.h
LaF/src/factorcolumn.cpp
LaF/src/file.cpp
LaF/src/reader.h
LaF/src/fwfreader.cpp
LaF/src/column.h
LaF/src/reader.cpp
LaF/src/file.h
LaF/src/Makevars.win
LaF/src/textutils.cpp
LaF/src/intcolumn.h
LaF/src/doublecolumn.cpp
LaF/src/conversion.cpp
LaF/NAMESPACE
LaF/NEWS
LaF/R
LaF/R/generics.R LaF/R/meta.R LaF/R/textutils.R LaF/R/utility.R LaF/R/read_dm_blaise.R LaF/R/laf_column.R LaF/R/stats.R LaF/R/open.R LaF/R/types.R LaF/R/laf.R
LaF/vignettes
LaF/vignettes/LaF-benchmark.Rnw.orig
LaF/vignettes/LaF-manual.Rnw
LaF/vignettes/LaF-benchmark.Rnw
LaF/MD5
LaF/build
LaF/build/vignette.rds
LaF/DESCRIPTION
LaF/man
LaF/man/current_line.Rd LaF/man/datamodels.Rd LaF/man/get_lines.Rd LaF/man/read_dm_blaise.Rd LaF/man/show.Rd LaF/man/laf_open_fwf.Rd LaF/man/read_lines.Rd LaF/man/names.Rd LaF/man/determine_nlines.Rd LaF/man/laf_column-class.Rd LaF/man/begin.Rd LaF/man/nrow.Rd LaF/man/indexing.Rd LaF/man/detect_dm_csv.Rd LaF/man/next_block.Rd LaF/man/levels.Rd LaF/man/stats.Rd LaF/man/cindexing.Rd LaF/man/laf-class.Rd LaF/man/goto.Rd LaF/man/sample_lines.Rd LaF/man/process_blocks.Rd LaF/man/ncol.Rd LaF/man/close.Rd LaF/man/laf_open_csv.Rd LaF/man/laf_open.Rd

Questions? Problems? Suggestions? or email at ian@mutexlabs.com.

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