A helper function: Initializes a data frame for plus_minus().
plus_minus_setup(evaluated, attributes, minus, plus)A data frame consisting of columns:
"id"Attribute IDs.
"structure"Attribute $structure() + $name.
countsAttributes' scale sizes.
low_boundsLow bounds of attributes' values.
high_boundsHigh bounds of attributes' values.
low_diffMaximum possible value decrease given low_bound and attribute scale.
high_diffMaximum possible value increase given high_bound and attribute scale.
evalsAlternative evaluation for the corresponding attribute (from evaluated).
setsevals represented as value sets.
An evaluated alternative.
Vector of DexiAttribute objects involved in plus-minus analysis.
A single integer: Maximum steps down.
A single integer: Maximum steps up.
plus_minus()