autovacuum_analyze_scale_factor and autovacuum_analyze_scale_factor

Hi community I have a question why settings default postgresql has autovacuum_vacuum_scale_factor in 0.2 is higher than autovacuum_analyze_scale_factor 0.1, so If want to tune these parameters, I always must leave autovacuum_vacuum_scale_factor higher than autovacuum_analyze_scale_factor, for instance I wanted to leave autovacuum_vacuum_scale_factor in 0.002 and autovacuum_analyze_scale_factor in 0.001