I'd first like to say, this is a great site. Everybody here has been patient and very informative! Thank you to everybody who has helped me over the last 2 days.

I'm still working on a script to process csv files. Before I can process the data, currently I need to "pre-process" the data using OpenOffice. Some of the data in the CSV file is in scientific notation (9.9871239340160043e-005). I found a perl module (Data Types) will allow the modification of Data Type.
my $decimal = '1.2foo';
  $decimal = to_decimal($decimal) unless is_decimal($decimal);

[download]
This appears to be what I need. I just don't know how to write a script to convert the data. My CSV files have headers in the first row, so I need to ignore that row. Also, my script is getting complex, and my perl skills are limited, so I am posting my script. If it's easier to create a seperate script to do this before my current script, feel free to tell me. I'm learning as I'm going.
#!/usr/bin/perl
    use strict;
    use warnings;
    use DBI;
    #use Text::CSV;

    # Connect to the database, (the directory containing our csv file(
+s))
    my $dbh = DBI->connect("DBI:CSV:f_dir=.;csv_eol=\n;");

    # Associate our csv file with the table name 'results'
    $dbh->{'csv_tables'}->{'results'} = { 'file' => 'test.csv'};

    my $sth = $dbh->prepare("SELECT * FROM results WHERE 1=0");
    $sth->execute;
    my @origcols = @{$sth->{NAME}};
    my @cols; # = @origcols;
    shift @origcols;
    foreach ( @origcols ) {
       #$_ =~ s/\.//g ;
       push ( @cols , $_ ); # unless /Bandwidth.*|MSTCPLoop.*/ ;
    };

    my $avgSQL =
      'SELECT '
      . join(', ', map { "avg($_) \n" } @cols )
      . ' FROM results';
    my @avgs = $dbh->selectrow_array($avgSQL);

    my %avgsHash;
    @avgsHash{ @cols } = @avgs;  # uses a hash slice to populate %avgs
+Hash
    print "Col,Avg\n";
    printf("%s,%f\n", $_, $avgsHash{$_}) for @cols;

[download]
Thanks

In reply to Modify Data type in CSV by DrAxeman

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.