awk Grouping and Subgrouping with Counts Post: 302776061

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Top Forums UNIX for Dummies Questions & Answers awk Grouping and Subgrouping with Counts Post 302776061 by Don Cragun on Wednesday 6th of March 2013 01:06:29 AM

03-06-2013

Registered User

Quote:

Originally Posted by JoshCrosby

Thank you so much, based on the dataset it is perfect.. however on the larger files it takes quite a while which is fine. The one issue is that its not taking product (column 1) into account and seems to be grouping on the count

Any ideas? I sincerely appreciate your help.

Some logic
-> product (sort by top 3 - based on how many rows it appears on)
----> skew (sort by top 5 skews from the products found above)
----> count of skews

I hope that helps explain a bit more.

A bit more, yes. But still not clear. In your sample input there are 6 occurrences each of products p1, p2, p3, and p4. You say you want the top 3 products, but your sample output only shows 2. (And since there are four products with the same number of occurrences, you don't say how to choose which 3 of those 4 should be chosen.) Your sample output didn't show the top 2 product/skew pairs p1/12345 and p2/23456 both of which appear 6 times even though p1 and p2 appear the same number of times as p3 and p4???

From what you did with your 1 count sample, you chose the last two of the set of the four most common products based on the fact that their product names sorted last. Is that really what you want?

If there are ties, should your results include all products that match the number of occurrences of the third most common product? If there are ties in the number of appearances of a skew within a product, should the results include all skews with the fifth most common skew within that product?

Will a single skew ever appear with more than one product, or are skews supposed to be unique to a product.

Don Cragun

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LEARN ABOUT CENTOS

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

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igawk