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02.25.2005 at 09:20AM PST, ID: 21329336
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7.6

Read in data from a text file and do some math

Asked by omcr in Perl Programming Language

Tags: , ,

I have a text file of the following format:
Thu Feb 24 16:00, 12-01  0, 2.00, 0.03, 0.00, 0.00
Thu Feb 24 17:00, 12-01  0, 3.00, 0.04, 0.00, 0.01
Thu Feb 24 18:00, 12-01  0, 0.00, 0.01, 0.00, 0.00
Thu Feb 24 19:00, 12-01  0, 0.00, 0.03, 0.00, 0.00
Thu Feb 24 20:00, 12-01  0, 0.00, 0.02, 0.19, 0.00
Thu Feb 24 21:00, 12-01  0, 1.00, 0.08, 0.22, 0.00
Thu Feb 24 22:00, 12-01  0, 0.00, 0.08, 0.00, 0.00
Thu Feb 24 23:00, 12-01  0, 0.00, 0.09, 0.00, 0.00

I want to get daily totals and averages. The last 3 columns are % and the other (4th from last) will be whole number.

My result should look like this:
                                 Tot    Avg       Avg       Avg
Daily Results 12-01 0, 6.00, 0.0475, 0.05125, 0.00125

So I read in the data and then do a split on the commas giving me $aa,$bb,$cc,$dd,$ee,$ff.
I then need to add all $cc  and also get the average of all the $dd, average of all the $ee, and the average of all the $ff.
I not too concerned about how the print out looks,  just how to work with the columns to get totals, averages, high, low and that kind of information.

I'm guessing this would be the best way to start:

while (<DROPS>){
  chomp;
   my ($aa,$bb,$cc,$dd,$ee,$ff) = split /\,/;

# do calculations





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[+][-]02.25.2005 at 09:45AM PST, ID: 13405195

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About this solution

Zone: Perl Programming Language
Tags: average, get, read
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Solution Provided By: bounsy
Participating Experts: 2
Solution Grade: A
 
 
[+][-]02.25.2005 at 10:33AM PST, ID: 13405677

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