effective.power: Effective Power computation
In SoftengPoliTo/powtran: POWer TRace ANalyzer

Description Usage Arguments Details Value Author(s) See Also

Process the work information and computes the effective power using one of the possible strategies.

1	effective.power(work, baseline="both", FUN=median)

`work`	a data frame containing work unit data as produced by the `extract.power`
`baseline`	a character string indicating how to compute the baseline power; see Details below. Default is `"both"`.
`FUN`	the function used to aggregate the baseline values

The effective power is computed by subtracting a baseline from the real power of the work unit.

The baseline can be computed in several different ways as indicated by the baseline argument:

"both": uses both the sleep phases preceding and following the work unit.
"left": uses the sleep phases preceding (i.e. on the left) the work unit.
"right": uses the sleep phases following (i.e. on the right) the work unit.
"gboth": uses an aggregated value computed from both the sleep phases preceding and following all the work units.
"gleft": uses an aggregated value computed fromthe sleep phases preceding (i.e. on the left) all the work units.
"gright": uses an aggregated value computed from the sleep phases following (i.e. on the right) all the work units.
"gmin": uses the global minimum value among the sleep phases either before or after all the work units.
"0": does not use any baseline (i.e. uses 0 as baseline).

The aggregation of two or more power levels is computed using the function specified as argument FUN

The function returns a data frame that consists in the original data frame work with a column P containing the computed effective power values. If such a column already exists in the data frame it is overwritten.

Marco Torchiano http://softeng.polito.it/torchiano/

extract.power

SoftengPoliTo/powtran documentation built on April 16, 2020, 1:47 a.m.