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3.2.15 Parameter -f

Parameter -f
Function Specifies the threshold for extending word hits
Default 0
Input format Integer
Example To increase the threshold to 13, use: -f 13

Note:

Zero (0) invokes default, 11 for blastp, 12 for blastx, 13 for tblastn and tblastx. Smaller value increases the search sensitivity. Use -W for blastn and megablast.



Tao Tao 2006-12-29