qat (version 0.74)

qat_analyse_roc_rule_dynamic_1d: Perform a dynamic roc-rule-check

Description

This check tests data on whether the change between two consecutive data points exceeds a dynamic threshold.

Usage

qat_analyse_roc_rule_dynamic_1d(measurement_vector, max_upward_vector = NULL, 
max_downward_vector = NULL, upward_vector_name = NULL, downward_vector_name = NULL,
upward_vector_identifier = NULL, downward_vector_identifier = NULL)

Arguments

measurement_vector

The measurement vector, which should be tested

max_upward_vector

A vector which consists of the threshold values for upward changes, with the same dimension like the measurement vector

max_downward_vector

A vector which consists of the threshold values for downward changes, with the same dimension like the measurement vector and have to be positive definite

upward_vector_name

A name or title of the upward vector, which will be given back in the result

downward_vector_name

A name or title of the downward vector, which will be given back in the result

upward_vector_identifier

The identifier of the upward vector

downward_vector_identifier

The identifier of the downward vector

Value

It returns a list with the following entries:

Details

This check tests two consecutive elements, on wether the change of values between those two exceeds the upward or downward threshold. The result will be given back as a list, which contains the result of the test as a flagvector and its parameters. For every change between two elements of the measurement vector the flagvector contains a -1, if its exceeding its dedicated downward vector element, a 1, if its exceeding its dedicated upward vector element, or a 0, when no exceeding has happend. NaN-values in the measurement vector will be given back as a 0 in the flagvector, NaN-values in the upward or downward-vector are considered as not existing.

References

Meek, D.W., Hatfield, J.L. (1994) Data quality checking for single station meteorological databases, \_Agricultural and Forest Meteorology\_, *69* (1-2), 85-109.

See Also

qat_plot_roc_rule_dynamic_1d, qat_call_roc_rule, qat_analyse_roc_rule_static_1d

Examples

vec <- rnorm(100)
min_vector<-seq(1,2,length.out=100)
max_vector<-seq(1,2,length.out=100)
result <- qat_analyse_roc_rule_dynamic_1d(vec, min_vector, max_vector, 
upward_vector_name="upward vector", downward_vector_name="downward vector")