Databases
StackOverflow2013
Postsdbo
POAwk script to loop and perform mathematical operations
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAwk script to loop and perform mathematical operations
    primarykey
    data
    text
    <p>I have bash and awk script that I use to extract data from the text file.<br> However it is too slow with large datasets and doesn't work perfectly. I believe that it is possible to write all my bash loop in one awk command and I ask somebody to help me with this. </p> <pre><code>cat dummy_list AAA AAAA AAAAA cat dummy_table 13 19 AAA 69 96 "ID-999" 34 23 42 AAA 12 19 "ID-999" 64 53 79 AAA 43 58 "ID-482" 36 13 43 AAA 12 15 "ID-492" 75 23 90 AAA 45 87 "ID-492" 34 12 41 AAAA 76 79 "ID-923" 23 19 58 AAAA 15 87 "ID-923" 75 10 40 AAAA 18 82 "ID-482" 23 11 18 AAAA 18 82 "ID-482" 52 15 19 AAAA 18 82 "ID-482" 62 59 69 AAAA 10 18 "ID-482" 83 78 89 AAAA 32 41 "ID-983" 24 23 53 AAAAA 78 99 "ID-916" 82 </code></pre> <p>What I want from this table:</p> <ol> <li><p>For every dummy_list item (<code>AAA</code> or <code>AAAA</code> or <code>AAAAA</code>) extract how many different times ID range was mentioned ( by this I mean unique columns 4+5+6 (like <code>69 96 "ID-999"</code>)). There are duplicate ID's (like <code>18 82 "ID-482"</code>) and I have to discard them.<br> My script looks like this: </p> <pre><code>while read a; do awk -v VAR="$a" '($3==VAR) {print $4"\t"$5"\t"$6}' dummy_table | sort -u | cut -f 3 | sort | uniq -c | awk '{print $1}' | tr '\n' ' ' | awk -v VAR="$a" '{print VAR"\t"$0}' done &lt; dummy_list AAA 1 2 2 AAAA 2 2 1 AAAAA 1 </code></pre> <p>It's the same as <code>AAA "ID-482" mentioned once; "ID-492" mentioned twice; "ID-999" mentioned twice</code>.</p> <p>This is the output I want. </p></li> <li><p>For every dummy_list item get average number of how many times it gets mentioned with the same ID. For example <code>AAA</code> occurs twice with <code>"ID-999"</code>, one time with <code>"ID-482"</code> and two times with <code>"ID-492"</code> - so it's (2+1+2)/3=1.66 </p> <p>My script looks like this: </p> <pre><code>while read a ; do ID_TIMES=$(awk -v VAR="$a" '($3==VAR) {print $6}' dummy_table | sort -u | wc -l) &amp;&amp; awk -v VAR="$a" '($3==VAR) {print $6}' dummy_table | sort | uniq -c | awk -v VAR="$ID_TIMES" '{sum+=$1} END {print sum/VAR}' done &lt; dummy_list AAA 1.666 AAAA 2.333 AAAAA 1 </code></pre></li> <li><p>For every dummy_list item extract ID range and calculate proportion between columns. For example:<br> <code>for AAA's ID-999:<br> RANGE1=sum $5-$4(96-69) + $5-$4(19-12)<br> RANGE2=sum $7(34+64)<br> then RANGE2*100/RANGE1=288</code><br> For the output like this: </p> <pre><code>AAA 288 240 242 .... AAAAA 390 </code></pre> <p>I wasn't able to write such script by myself as I got stuck with two variables $RANGE1 and $RANGE2.<br> If it it possible it would be great to discard duplicate ranges like <code>18 82 "ID-482"</code> in this step as well.</p></li> </ol> <p>I believe that all these there operations can be calculated with only one <code>awk</code> command and I feel desperate about my scripts. I really hope that someone will help me in this operation. </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USPoGibas
    1. USPoGibas
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAwk script to loop and perform mathematical operations
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POAwk script to loop and perform mathematical operations
      1. UShek2mgl
      1. VTFavorite
    3. VO
      singulars
      1. POAwk script to loop and perform mathematical operations
      1. USAdrian Frühwirth
      1. VTFavorite
    1. COHave you considered using a relational database?
      singulars
      1. POAwk script to loop and perform mathematical operations
      1. This table or related slice is empty.
    2. COThis is why I need all this data extraction.
      singulars
      1. POAwk script to loop and perform mathematical operations
      1. USPoGibas
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload