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Annotation of researchv10dc/vol2/grap/regress.awk, revision 1.1.1.1

1.1       root        1: awk '
                      2:        { x+=$1; x2+=$1*$1; y+=$2; xy+=$1*$2 }
                      3: END    { slope=(NR*xy-x*y)/(NR*x2-x*x); print (y-slope*x)/NR, slope }
                      4: ' $*

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