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POperl plotting using GD:Graph
 

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  1. POperl plotting using GD:Graph
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    <p>I have data like this.</p> <pre><code>file1 date1 1 76.09 date10 10 87.09 date11 11 89.89 date2 2 66.5 date3 3 78.89 date4 4 87.98 date5 5 57 date6 6 57.98 date7 7 34.32 date8 8 45.76 date9 9 34.99 file2 date1 1 82.45 date2 2 86.23 file3 date1 1 65.76 date10 10 34.89 date11 11 23.79 date12 12 86.23 date2 2 23.78 date3 3 45.78 date4 4 34.78 date5 5 67.89 date6 6 34.78 date7 7 78.45 date8 8 67.89 date9 9 86.23 </code></pre> <p>I am storing the column 3 and column 4 values in array.</p> <pre><code>@x = [1,10,11,12,13,2,3,4,5,6,7,8,9] and corresponding column 4 values in array @y </code></pre> <p>Now I plot the graph as folllows:</p> <pre><code>my @data = ([@x], [@y]); my $mygraph = GD::Graph::lines-&gt;new(500, 300); $mygraph-&gt;set( x_label =&gt; 'X axis', y_label =&gt; 'Y axis', title =&gt; "stats", ) or warn $mygraph-&gt;error; my $myimage = $mygraph-&gt;plot(\@data) or die $mygraph-&gt;error; </code></pre> <p>My problem is...</p> <p>In the graph the X-axis has values displayed as 1,10,11,12,13,2,3,4,5,6,7,8,9 and corresponding y values plotted. I cannot hard code the x -axis values as I extract these data from a file into these arrays. How do I make sure that X-axis has values 1,2,3,4,5,6,7,8,9,10,11,12,13 and has corresponding y values plotted.</p> <p>Also I have abother file which has data like:</p> <pre><code>file1 date1 1 1 date10 10 2 date11 11 2 date2 2 2 date3 3 3 date4 4 3 date5 5 3 date6 6 4 date7 7 4 date8 8 4 date9 9 4 file2 date1 1 3 date2 2 2 file3 date1 1 2 date10 10 3 date11 11 3 date12 12 3 date2 2 3 date3 3 1 date4 4 2 date5 5 5 date6 6 1 date7 7 1 date8 8 2 date9 9 2 </code></pre> <p>I can plot graohs for datasets in both of these files separately. But what I want to do is, I want to show a single graph with column 3 and column 4 of first file plotted along with the column 3 and column 4 of 2nd file plotted in single graph.</p> <p>Can somebody please help me with these two issues.</p> <p>Thank you.</p>
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    1. USjerrygo
    1. USjerrygo
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      1. POperl plotting using GD:Graph
      1. USChris J
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    2. VO
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    1. COYour question is unclear. Also even though you are using `GD::Graph::lines`, your discussion make me think that you don't want the kind of line graphs that `GD::Graph` produces by default. Rather, you seem to want X-Y scatter plots. But I'm not sure I understand your goal. If you do want scatter plots, see `GD::Graph::Cartesian`.
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      1. USFMc
    2. COsorry. I would make it clear. I am plotting a line graph for each of the dataset in 2 files.I have a line graph plotted for file1 from first file,a graph plotted for file2 from first file,and one for file3 from first file. Similarly, I have a line graph plotted for each of file1,file2,file3 of second file. I want to combine the graphs for file1 from both first and second file so that I can correlate the data and do some analysis. It can look like anything but there should be way to see both data in same graph. I am not particular about using any specific kind of graph.
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      1. USjerrygo
    3. CO-1: you posted almost this exact question here http://stackoverflow.com/questions/3269355/perl-plotting-for-multiple-datasets-in-csv-file/3269598#3269598 2 days ago, to which I offered a solution and you haven't closed, accepted or otherwise acknowledged it.
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      1. USPedro Silva
 

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