ideograb {ideogram} | R Documentation |
ideograb
reads the position of the graphics pointer
when the (first) mouse button is pressed. ideogram
also reads
a second position of the graphics pointer after another
mouse button press. The two points selected are used to define a
diagonal line from which a bounding box will be constructed. It then
retrieves the gene identifiers of the points that lie within the
bounding box.
ideograb(ideo, show.box = TRUE, brush = NULL, ...)
ideo |
point coordinates and cooresponding gene identifiers
from an ideogram function call |
show.box |
boolean. if TRUE, a box is drawn showing the selected region |
brush |
a color to highlight the points within the selected region |
... |
additional plotting paramters passed to points to
modify the points within the selected region |
Coordinates can be passed in a plotting structure (a list with
x
, y
, and labels
components). Typically this is
generated from a call to ideogram
.
The points selected are used to define the top-left and bottom-right locations or the bottom-left and top-right locations for bounding box. These locations can be selected in any order. A character vector of the labels of all the points that lie within the selected region is returned.
A character vector of gene identifiers
Karl Dykema <karl.dykema@vai.org>
data(ideogramExample) ip <- ideogram(colo.eset@exprs[,1],ucsf.chr,chr="1") if(interactive()) ideograb(ip,brush="red")