integer or character string, specifies the column of data.
color.col
integer or character string, specifies the column of colors.
color.gradient
a vector of gradient colors.
fixed.height
logical, whether to fix the histogram height, resulting in heat-map if TRUE.
track.color
NA or color code for the track background.
track.border
the color to draw the track border. Use NA to omit borders.
polygon.border
the color to draw the polygon border. See explanation for polygon.
custom.track.height
NULL or numeric, specifying customized track height to overwrite the default. See rc.get.params for default value.
max.value
NULL or numeric, specifying the maximum data value for normalization. Default NULL, get max from data column data.col.
Details
Data must have at least four columns: Chr1, Start1, Chr2 and End2, specifying the chromosomes and positions for the start and end points. Additional columns may be used to specify the data, color, etc.
If color.gradient is not NULL, it will supersede color.col.