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Full Discussion: Problem with getting awk to multiply a field by a value set based on condition of another field
Top Forums UNIX for Beginners Questions & Answers Problem with getting awk to multiply a field by a value set based on condition of another field Post 303043631 by nezabudka on Sunday 2nd of February 2020 03:02:58 PM
Old 02-02-2020
Hi
I honestly didn't understand anything except the first part of the program.
So I'll just tweak the style to make it better to read
Code:
awk -F, '
NR == 1         { next }
!course[$3]     { low[$3] = $4 }
$4 < low[$3]    { low[$3] = $4 }
$4 > high[$3]   { high[$3] = $4 }
                { sum[$3] += $4; ++course[$3] }
END             { print "Name", "Low", "High", "Avg"
                  for (k in course)
                    printf "%s\t%d\t%d\t%.2f\n",  k, low[k], high[k], sum[k]/course[k]
                }
' OFS='\t' data.csv

Last edited by nezabudka; 02-02-2020 at 04:56 PM..
 

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