Enable Compression of Large Components

NB: More recent documentation for Dyalog APL is available at https://docs.dyalog.com/20.0/.

{R}←3012⌶Y

Specifies whether large components (>2GB) may be compressed.

Y is an integer defined as follows:

Value	Description
0	Large components will not be compressed
1	Large components will be compressed if Z property is 1 (see File Properties ), but versions of Dyalog prior to 19.0 will not be able to read them.

The shy result R is the previous value of this setting.