hexVP.abline {hexbin}R Documentation

Add a Straight Line to a HexPlot

Description

This function adds one or more straight lines through the current plot.

Usage

hexVP.abline(hvp, a, b = NULL, h = numeric(0), v = numeric(0), col = "black", lty = 1, lwd = 2, ...)

Arguments

hvp A hexViewport object that is currently on the active device
a,b the intercept and slope or if b is NULL an lm object or a vector of length 2 with c(intercept,slope)
h the y-value for a horizontal line.
v the x-value for a vertical line.
col line color
lty line type
lwd line width
... graphical parameters

Details

The first form specifies the line in intercept/slope form (alternatively 'a' can be specified on its own and is taken to contain the slope and intercept in vector form).

The h= and v= forms draw horizontal and vertical lines at the specified coordinates.

The coef form specifies the line by a vector containing the slope and intercept.

lm is a regression object which contains reg$coef. If it is of length 1 then the value is taken to be the slope of a line through the origin, otherwise, the first 2 values are taken to be the intercept and slope

Author(s)

Nicholas Lewin-Koh

See Also

gplot.hexbin,hexViewport,hexMA.loess

Examples



[Package hexbin version 1.2.7 Index]