COV5_x: Computes the coefficient of variance for an interval vector...

View source: R/rythm.R

COV5_xR Documentation

Computes the coefficient of variance for an interval vector based on the average of the first four elements in the vector of intervals.

Description

Computes the coefficient of variance for an interval vector based on the average of the first four elements in the vector of intervals.

Usage

COV5_x(x, n = 20, return.na = TRUE, na.rm = TRUE)

Arguments

x

The input vector containing syllable durations.

n

The number of intervals to include in the computations. Defaults to 20. The vector should not contain missing values.

return.na

boolean;Return NA in the case there are not 8 intervals in the series?

na.rm

Should NA intervals be removed?

Value

A single value indicating Relative coefficient of variation in intervals $5..n$ relative to the mean duration of intervals $1..4$.

Author(s)

Fredrik Karlsson

References

Skodda, S., Lorenz, J., & Schlegel, U. (2012). Instability of syllable repetition in Parkinson's disease—Impairment of automated speech performance? Basal Ganglia, 3(1), 33–37. doi:10.1016/j.baga.2012.11.002 Skodda, S., Schlegel, U., Hoffmann, R., & Saft, C. (2013). Impaired motor speech performance in Huntington’s disease. Journal of Neural Transmission, 1–9–9. doi:10.1007/s00702-013-1115-9


FredrikKarlssonSpeech/articulated documentation built on July 20, 2023, 8:20 a.m.