hexMA.loess {hexbin}R Documentation

Add Loess Fit to Hexplot

Description

Fit a loess line using the hexagon centers of mass as the x and y coordinates and the cell counts as weights.

Usage

hexVP.loess(hbin, hvp=NULL, span = 0.4, col = "red")
hexMA.loess(pMA, span = 0.4, col = "red")

Arguments

hbin an object of class hexbin, see hexbin.
hvp A hexViewport object.
pMA the list returned by plotMAhex.
span the parameter alpha which controls the degree of smoothing.
col line color for the loess fit.

Value

Returns invisibly the object associated with the loess fit.

Author(s)

Nicholas Lewin-Koh

See Also

hexVP.abline,plotMAhex,gplot.hexbin,hexViewport,loess

Examples

  if(require(marray)){
    data(swirl)
    hb <- plotMAhex(swirl[,1],newpage=FALSE,
                    main = "M vs A plot with hexagons", legend=0)
    hexVP.abline(hb$plot,h=0,col=gray(.6))
    hexMA.loess(hb)
  }

[Package hexbin version 1.2.7 Index]