idiograb {idiogram} | R Documentation |
idiograb
reads the position of the graphics pointer
when the (first) mouse button is pressed. idiogram
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.
idiograb(idio, show.box = TRUE, brush = NULL, ...)
idio |
point coordinates and cooresponding gene identifiers
from an idiogram 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 idiogram
.
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(idiogramExample) ip <- idiogram(colo.eset@exprs[,1],ucsf.chr,chr="1") if(interactive()) idiograb(ip,brush="red")