5.1.53 SEARCHSP_EFF

Parameter: SEARCHSP_EFF

Description	Specifies the effective search space size to use in Expect value calculation
Value	real
Default	0
CMD	Put
Example	'...&SEARCHSP_EFF=1e8&...' set this parameter to 10 $^{\textrm{8}}$

Note: Effective search space is the product of the effective query length and the effective database length. Use '-Y' for standalone commandline BLAST, or '-Y value' under OTHER_ADVANCED parameter for wwwblast.