When I run my code I get this error "Can't locate object method 'fetchrow_array' via package 'IO::File' at line 81 <_GEN_0> line 10." What am I doing wrong?
my $fh = IO::File->new_tmpfile or die "Unable to make new temp file: $ +!"; foreach $line (<FILE>) { ~~~~~blah blah~~~~~~ } my $data = GD::Graph::Data->new(); $data->read(file => ‘$fh’, delimiter => '\t'); $data = $data -> copy(wanted => [0, 1, 2 print <$fh>; while (my @row = $fh->fetchrow_array()) <------line 81 { $data ->add_point($row); } my $graph = GD::Graph::points->new(); $graph->set( x_label => 'Time/Date', y_label => 'Latency Count', title => "Latency Graph between $center1 and $center2", ) or warn $graph->error; my $image = $graph->plot($data) or die $graph->error; open(IMAGE, ">graph.png") or die "Not able to open image file\n"; + binmode IMAGE; print IMAGE $image->png or die "Problem writing to image file\n";

In reply to Can't locate object method by ITmajor

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.