Apply Quality Control Checks to Meteorological Data

Applies quality control procedures to a `metamet` object by removing out-of-range values and creating a quality code table. The function flags missing or invalid values that fall outside acceptable ranges defined in the metadata.

Usage

apply_qc(mm0)

Arguments

mm0

A `metamet` object containing at least `dt` (data table), `dt_meta` (metadata table with min/max ranges), and `dt_site` (site information).

Value

A modified `metamet` object with:

dt

Data values, with out-of-range values set to NA

dt_qc

New quality control table (1 = invalid/missing, 0 = valid)

All other fields from the input object are preserved.

Details

The function performs the following steps:

1. Removes values outside the min/max range specified in `dt_meta`

2. Creates a quality control table (`dt_qc`) where 1 indicates a missing or out-of-range value, and 0 indicates a valid value

3. Adds a validator field marked as "auto" (to be replaced by username when manually validated)

See also

remove_out_of_range for the range-checking implementation

Examples

# mm_qc <- apply_qc(mm)