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NAME

m.csv.clean - Creates a cleaned-up copy a CSV files
Creates CSV files which are ready to used in GRASS GIS

KEYWORDS

miscellaneous, CSV, ASCII

SYNOPSIS

m.csv.clean
m.csv.clean --help
m.csv.clean input=name separator=character output=name prefix=string [recognized_date=string[,string,...]] [clean_date=string] missing_names=string [cell_clean=string[,string,...]] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

input=name [required]
Input CSV file to clean up
Name of input file
separator=character [required]
Field separator
Special characters: pipe, comma, space, tab, newline
Default: comma
output=name [required]
Clean CSV output file
Name for output file
prefix=string [required]
Prefix for columns which don't start with a letter
Prefix itself must start with a letter of English alphabeth
Default: col_
recognized_date=string[,string,...]
Recognized date formats (e.g., %m/%d/%y)
For example, %m/%d/%Y,%m/%d/%y matches 7/30/2021 and 7/30/21
clean_date=string
Format for new clean-up date
For example, %Y-%m-%d for 2021-07-30
Default: date_%Y-%m-%d
missing_names=string [required]
Names for the columns without a name in the header
If only one is provided, but more than one is need, underscore and column number is added
Default: column
cell_clean=string[,string,...]
Operations to apply to non-header cells in the body of the document
If only one is provided, but more than one is need, underscore and column number is added
Options: strip_whitespace, collapse_whitespace, date_format, none
Default: strip_whitespace,collapse_whitespace

Table of contents

DESCRIPTION

m.csv.clean reads a CSV (Comma Separated Value) file, cleans it, and writes a new CSV file. The separator for CSV is comma (,) by default, but it can be set to any single character such as semicolon (;), pipe (|), or tabulator.

NOTES

Originally, the name for this module was supposed to be m.csv.polish and the module was to be accompanied with module named m.csv.czech for checking the state of the CSV.

EXAMPLES

In GRASS GIS shell

The following would apply all the default fixes to the the file sampling_sites_raw.csv and output a cleaned file sampling_sites.csv:
m.csv.clean input=sampling_sites_raw.csv output=sampling_sites.csv

In any shell

The module is not using any information from the current location and mapset, so it is very easy to run it with an adhoc temporary location by executing a grass --exec command:
grass --tmp-location XY --exec m.csv.clean input=sampling_sites_raw.csv output=sampling_sites.csv

SEE ALSO

AUTHOR

Vaclav Petras, NCSU Center for Geospatial Analytics

SOURCE CODE

Available at: m.csv.clean source code (history)


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