curvebox_data function

Curve Boxplot Data

Curve Boxplot Data

This function constructs the amplitude boxplot.

curvebox_data(align_median, alpha = 0.05, ka = 1)

Arguments

  • align_median: object from curve_karcher_mean() of aligned curves using the median
  • alpha: quantile value (default=.05, i.e., 95%)
  • ka: scalar for outlier cutoff (default=1)

Returns

Returns an curvebox object containing:

  • median_y: median curve
  • Q1: First quartile
  • Q3: Second quartile
  • Q1a: First quantile based on alpha
  • Q3a: Second quantile based on alpha
  • minn: minimum extreme curve
  • maxx: maximum extreme curve
  • outlier_index: indexes of outlier curves
  • fmedian: median curve

References

Xie, W., S. Kurtek, K. Bharath, and Y. Sun (2016). "A geometric approach to visualization of variability in functional data." Journal of the American Statistical Association in press: 1-34.

  • Maintainer: J. Derek Tucker
  • License: GPL-3
  • Last published: 2024-12-06