Construct a ViewDaf over a base daf. — viewer • dafr

Construct a ViewDaf over a base daf.

Usage

viewer(daf, name = NULL, axes = NULL, data = NULL)

Arguments

daf: Base DafReader.
name: Name for the view (defaults to <daf-name>.view).
axes: Optional list of axis overrides. V1 path: NULL means expose every base axis as-is.
data: Optional list of data overrides. V1 path: unused; the no-override behaviour is always "expose everything as-is".

Value

A ViewDaf.

Examples

d <- example_cells_daf()
# NULL query drops an axis from the view:
v <- viewer(d, axes = list(list(ALL_AXES, "="), list("gene", NULL)))
axes_set(v)
#> [1] "cell"       "donor"      "experiment"
vectors_set(v, "cell")
#> [1] "donor"      "experiment"