get.segs: Calculate the midpoints and limits for a centipede plot

In plotrix: Various Plotting Functions

Calculate the midpoints and limits for a centipede plot

Description

Calculates midpoints and limits for a list or data frame for use with centipede.plot.

Usage

 get.segs(x,mct="mean",lower.limit="std.error",upper.limit=lower.limit)

Arguments

x	a list or data frame.
mct	The name of the function to calculate midpoints.
lower.limit,upper.limit	The names of the function(s) to calculate lower and upper limits.

Details

‘⁠get.segs⁠’ calls the functions whose names are passed to calculate midpoints and limits for each list element or data frame column. The user can define special functions for the central and dispersion measures if desired.

Value

A matrix with four rows and as many columns as were in the object ‘⁠x⁠’. The first row contains the midpoint values, the second and third the lower and upper limit values respectively and the fourth row the number of valid observations in the columns.

Author(s)

Jim Lemon

See Also

centipede.plot

plotrix documentation built on Nov. 10, 2023, 5:07 p.m.