Return the dimensionality of a query's result.

Return the dimensionality of a query's result.

Usage

query_result_dimensions(query_string)

Arguments

query_string

A query string (character scalar) or a DafrQuery object produced by the query builders (e.g. Axis("cell") |> LookupVector("donor")).

Value

0L (scalar), 1L (vector / axis entries), 2L (matrix), or NA_integer_ if the query is ill-formed.

Examples

query_result_dimensions(". organism")
#> [1] 0
query_result_dimensions("@ cell : donor")
#> [1] 1
query_result_dimensions("@ cell @ gene :: UMIs")
#> [1] 2