abap/initrc_degree is a SAP Parameter attribute which is used to control determines the degree of the initial record compression information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
For details, see SAP Note 559874
0
Minimum compression
1
Normal compression
2
Maximum compression
See SAP Parameter Documentation for full SAP documentation for this profile parameter.