circs function

Estimate directional statistics for one-sigma events

Uses the package "CircStats" to find the mean direction, rho, and kappa of the von Mises distribution summarizing the ordinal day of high- and low-flow events.

circ.s(x)

Arguments

• x: Output from "compare.periods" function (of class "compflows").

Returns

• circstats: data.frame with rows corresponding to the high- and low-flows for both periods. The columns list n, mu, rho, and kappa as calculated using the CircStats package.

Examples

# load data
data("sycamore")

# compare for periods from 1960 to 1979 and 1980 to 1999
comp = compare.periods(c("1960-01-01", "1979-12-31"), 
c("1980-01-01", "1999-12-31"), sycamore, plot=FALSE)

circ.s(comp)

See Also

compare.periods