row2set

来自「关联规则挖掘算法FP-growth算法C++实现」· 代码 · 共 8 行

#!/bin/sh
gawk '
BEGIN      { n = 0; }
($0 != "") { if (n++ > 0) printf(" "); printf($1); }
($0 == "") { printf("\n"); n = 0; }
END        { printf("\n"); }
' $1 > $2