conf_input: Check Confidence data

In confidence: Confidence Estimation of Environmental State Classifications

Description

This function checks data.frames to be used by the confidence package. The format has been specified in Van Loon (2014) and should contain the following columns:

• OBJECTID: water body code, e.g., NL89_os;

• PAR: parameter, e.g., Cadmium;

• DATE: date according to ISO 8601 (YYYY-mm-dd) for point values or year YYYY for annual means;

• VALUE: numerical value.

• TARGET: target value for the European Water Framework Directive;

• UNIT: measurement unit of PAR. This unit should be the same for all records with the same PAR and is the same for both VALUE and TARGET;

• transform: data transformation, i.e., log, logit, NA.

Usage

conf_input(x)

Arguments

x	data.frame to be checked

Details

The function performs the following tasks:

• checks availablitity of required columns (case insensitive);

• make column names case-insensitive;

• removes redundant spaces;

• checks on missing values in required columns;

• checks if DATE-field adheres to ISO 8601 (YYYY-mm-dd) or YYYY;

• checks mixtures of annual averages and point values for a each year;

• checks if measurement units are the same for a specific OBJECTID-PAR-pair;

• checks if TARGET-value is the same for a specific OBJECTID-PAR-pair;

• checks if transform is one of log, logit, NA in transform column;

• checks that the EQR-column contains identical values fo each OBJECTID-PAR combination.

Value

data.frame that has passed all checks

confidence documentation built on May 2, 2019, 1:06 p.m.