Get scalar value from a Daf object — get

Retrieves the value of a scalar property with the given name from the Daf data set.

Usage

get_scalar(daf, name, default = NULL)

Arguments

daf: A Daf object
name: Name of the scalar property to retrieve
default: Default value to return if the scalar doesn't exist. If NULL, an error is thrown.

Value

The scalar value or default if the property is not found

Details

Numeric scalars are returned as integers or doubles, regardless of the specific data type they are stored as in the Daf data set. See the Julia documentation for details.

Examples

if (FALSE) { # \dontrun{
setup_daf()
daf <- memory_daf("example")
set_scalar(daf, "version", "1.0")
get_scalar(daf, "version") # "1.0"
} # }