total variation

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total variation

[′tōd·əl ‚ver·ē′ā·shən]
(mathematics)
For a real function defined on an interval, the least upper bound of the function's variation relative to all possible partitions of the interval.
References in periodicals archive ?
Trust executives now have high-level information to review performance against national standards and operations while directors can measure variation across the organization.
To measure variation in payment rates under Medicare's Inpatient Prospective Payment System (IPPS) and identify the main payment adjustments that drive variation.
Galton's zeal for quantification turned to efforts to measure variation among humans.
There are several methods to measure variation. With univariate analyses, each variable is analyzed separately allowing for substantial overlapping of results to occur.
The differences among risks within individual classifications caused the establishment of a means to measure variation in hazard, i.e., the "experience rating plan." Today, all risks in excess of a certain premium dollar threshold that varies from state to state are required to participate in the experience rating plan.
Although the Pareto Analysis is a useful tool for quality improvement, it has the drawbacks of not being able to measure variation over time and not being able to measure trends.
As the permanent teams (part of the adoption system) develop systematic methods of accomplishing specific tasks, each key process step can be measured using the analytic system to improve efficiency and measure variation from the standard.
The key to predict what will happen in each individual is to measure variation in the expression of both types of gene."
By analyzing the chemical composition of the bark and the size of the growth rings, the researchers were able to measure variations in air pollution levels based on the various chemical elements to which the trees were exposed during their development and to estimate how this factor influenced tree growth.
By studying methylation in placental cells, investigators are able to measure variations in a tissue where it may have specific impacts on health outcomes.
This clearance by Korean regulators is similar to the decision of the French Society for Anaesthesia and Intensive Care (SFAR), which in 2013 added PVI to guidelines for optimal haemodynamic management during surgery.(6) Similar to Korean authorities, SFAR recommends the use of "dynamic" parameters such as PVI that measure variations over the respiratory cycle.