Select an area in the heatmap

Select an area in the heatmap

selectArea(ht_list = get_last_ht(), pos1 = NULL, pos2 = NULL, mark = TRUE, verbose = TRUE,
    ht_pos = NULL, include_annotation = FALSE, calibrate = TRUE)

Arguments

ht_list	A HeatmapList-class object returned by draw,Heatmap-method or draw,HeatmapList-method. If it is omitted, it uses the last generated heatmap.
mark	Whether to mark the selected area as a rectangle.
pos1	If the value is NULL, it can be selected by click on the heatmap (of cource, the heatmap should be on the interactive graphics device). If it is set, it must be a unit object with length two which corresponds to the x and y position of the point.
pos2	Another point as pos1, together with pos1 defines the selected region.
verbose	Whether to print messages.
ht_pos	A value returned by htPositionsOnDevice.
include_annotation	Internally used.
calibrate	Internally used. Mainly works for Rstudio desktop IDE.

Details

The regions can be selected interactively or selected manually by setting pos1 and pos2.

Value

A DataFrame object with row indices and column indices corresponding to the selected region.

Examples

if(dev.interactive()) {
    m = matrix(rnorm(100), 10)
    rownames(m) = 1:10
    colnames(m) = 1:10

    ht = Heatmap(m)
    ht = draw(ht)
    selectArea(ht)

    set.seed(123)
    ht = Heatmap(m, row_km = 2, column_km = 2)
    ht = draw(ht)
    selectArea(ht)
}