stats

colmean

colmean,laf-method

colmean,laf_column-method

colsum

colsum,laf-method

colsum,laf_column-method

colrange

colrange,laf-method

colrange,laf_column-method

colfreq

colfreq,laf-method

colfreq,laf_column-method

colnmissing

colnmissing,laf-method

colnmissing,laf_column-method

Methods for calculating simple statistics of columns of a file: mean, sum,
  standard deviation, range (min and max), and number of missing values.

methods

The LaF package provides 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.

Jan der Laan

Fast access to large ASCII files

stats function

Calculate simple statistics of columns

stats: Calculate simple statistics of columns

Description

Arguments