Calculates the Seasonal or Regional Kendall test of trend significance, including an estimate of the Sen slope.
seaKen(x, ...)
A list of the following if x is a vector: seaKen returns a list with the following members:
Sen slope
Sen slope as percent of mean
significance of slope
for each season, the fraction missing of slopes connecting first and last 20 percent of the years or a matrix with corresponding columns if x is a matrix or data frame.
A numeric vector, matrix or data frame made up of seasonal time series
Other arguments to pass to plotting function
Alan D. Jassby and James E. Cloern
mannKen