1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
use GIFgraph::linespoints;
print STDERR "Processing sample 4-2\n";
@data = read_data_from_csv("sample42.dat")
or die "Cannot read data from sample42.dat";
$my_graph = new GIFgraph::linespoints( );
$my_graph->set(
x_label => 'X Label',
y_label => 'Y label',
title => 'A Lines and Points Graph, reading a CSV file',
y_max_value => 80,
y_tick_number => 6,
y_label_skip => 2,
markers => [ 1, 5 ],
);
$my_graph->set_legend( 'data set 1', 'data set 2' );
$my_graph->plot_to_gif( "sample42.gif", \@data );
exit;
sub read_data_from_csv
{
my $fn = shift;
my @d = ();
open(ZZZ, $fn) || return ();
while (<ZZZ>)
{
chomp;
# you might want Text::CSV here
my @row = split /,/;
for (my $i = 0; $i <= $#row; $i++)
{
undef $row[$i] if ($row[$i] eq 'undef');
push @{$d[$i]}, $row[$i];
}
}
close (ZZZ);
return @d;
}
|
