ampbox_data | R Documentation |
This function constructs the amplitude boxplot.
ampbox_data(warp_median, alpha = 0.05, ka = 1)
warp_median |
fdawarp object from |
alpha |
quantile value (default=.05, i.e., 95%) |
ka |
scalar for outlier cutoff (default=1) |
Returns an ampbox
object containing:
median_y
: median function
Q1
: First quartile
Q3
: Second quartile
Q1a
: First quantile based on alpha
Q3a
: Second quantile based on alpha
minn
: minimum extreme function
maxx
: maximum extreme function
outlier_index
: indexes of outlier functions
fmedian
: median function
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.
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