phbox_data {fdasrvf} | R Documentation |
Phase Boxplot Data
Description
This function constructs the phase boxplot.
Usage
phbox_data(warp_median, alpha = 0.05, kp = 1)
Arguments
warp_median |
fdawarp object from time_warping of aligned data using the median. |
alpha |
quantile value (default=.05, i.e., 95%). |
kp |
scalar for outlier cutoff (default=1). |
Value
Returns a phbox
object containing:
-
median_x
: median warping 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
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.
[Package fdasrvf version 2.4.0 Index]