Description Usage Arguments Value Author(s) See Also Examples

View source: R/smooth.average.R

the weight of previous elements is determined by the resolution of the time series and the half-life of the weighting function

1 | ```
smooth.average(amplitude, time.res, half.life, initial.value = 1)
``` |

`amplitude` |
a vector of real-valued numbers |

`time.res` |
the time interval separating the elements of |

`half.life` |
the time it takes for half of an element's impact to disappear. |

`initial.value` |
the starting value of the smooth. it's usually good to start with
something other than |

a numeric vector the same length as `amplitude`

Benjamin N. Taft ben.taft@landmarkacoustics.com

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | ```
##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (amplitude, time.res, half.life, initial.value = 1)
{
N <- length(amplitude)
smooth.amplitude <- rep(initial.value, N)
k <- time.res/half.life
for (i in 2:N) {
smooth.amplitude[i] <- (1 - k) * smooth.amplitude[i -
1] + k * amplitude[i]
}
return(invisible(smooth.amplitude))
}
``` |

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