BEQI2 (version 2.0-0)

readBEQI: Read BEQI input files

Description

This function reads and checks BEQI input files. The format has been specified in Van Loon (2013).

Usage

readBEQI(filename)

Arguments

filename

name of BEQI input file (character)

Details

The function performs the following tasks:

• checks the existence of filename;
• checks availablitity of required columns (case insensitive);
• make column names with aggregation data case-insensitive;
• removes redundant spaces;
• checks if DATE-field adheres to ISO 8601 (YYYY-mm-dd);
• constructs a unique identifier ID by concatenating columns OBJECTID and DATE;
• aggregate (by summation) VALUE-fields of records that only differ in VALUE-field value;
• checks that each ID has a unique AREA;
• checks azoic samples for VALUE=0;
• removes records with VALUE=0, not belonging to azoic samples;
• checks VALUE-field on missing values;
• checks if VALUE-field is an integer;

References

Willem van Loon, 2013. BEQI2 INPUT FORMAT