ds_nvars

Retrieve the number of variables of a given dataset.

%let nvars = %ds_nvars(dsn, lib=WORK);

Arguments

• dsn : a dataset reference;
• lib : (option) name of the input library; by default: empty, i.e. WORK is used.

Returns

nvars : number of variables in dataset dsn.

Example

Let us consider test dataset #5:

f	e	d	c	b	a
.	1	2	3	.	5

then:

%_dstest5;
%let nvars=%ds_nvars(_dstest5);

returns nvars=5 as expected.

Run %_example_ds_nvars for more examples.

See also

%ds_count.