Fast access to large ASCII files

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Documentation for package ‘LaF’ version 0.4

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laf-package Fast access to large ASCII files
$-method Class "laf"
begin Return to the beginning of the file.
begin-method Class "laf"
begin-methods Return to the beginning of the file.
close-method Class "laf"
colfreq Calculate simple statistics of columns
colfreq-method Calculate simple statistics of columns
colmean Calculate simple statistics of columns
colmean-method Calculate simple statistics of columns
colnmissing Calculate simple statistics of columns
colnmissing-method Calculate simple statistics of columns
colrange Calculate simple statistics of columns
colrange-method Calculate simple statistics of columns
colsum Calculate simple statistics of columns
colsum-method Calculate simple statistics of columns
current_line Get the current line in the file.
current_line-method Class "laf"
current_line-methods Get the current line in the file.
goto Go to specified line in the file
goto-method Class "laf"
goto-methods Go to specified line in the file
laf Fast access to large ASCII files
laf-class Class "laf"
laf_column-class Class "laf_column"
laf_open_csv Create a connection to a comma seperated value (CSV) file.
laf_open_fwf Create a connection to a fixed width file.
levels-method Class "laf"
levels-method Class "laf_column"
names-method Class "laf"
names<--method Class "laf"
ncol-method Class "laf"
next_block Read the next block of data from a file.
next_block-method Class "laf"
next_block-method Class "laf_column"
next_block-methods Read the next block of data from a file.
nrow-method Class "laf"
process_blocks Blockwise processing of blocks.
process_blocks-method Class "laf"
process_blocks-methods Blockwise processing of blocks.
read_lines Read lines from the file
read_lines-method Class "laf"
read_lines-method Class "laf_column"
read_lines-methods Read lines from the file
show-method Class "laf"
show-method Class "laf_column"
stats Calculate simple statistics of columns
[-method Class "laf"
[-method Class "laf_column"
[[-method Class "laf"