in reply to GD::Graph::points + multiple data sets

I may be missing the obvious here, but can't you concatenate the two arrays together?

@x_values_all = (@x_values1, @x_values2);
@y_values_all = (@y_values1, @y_values2);

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Tom Melly, tom@tomandlu.co.uk

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Re: Re: GD::Graph::points + multiple data sets
by Anonymous Monk on Oct 08, 2003 at 13:28 UTC
    you can do this for the x-axis but not the y-axis too as then you will have only one data-set! I have tried the following, but it seems to miss out some data-points (not sure why). 
    
my @totalx_vals = (@x_vals1, @x_vals2);
my @graph_data = (\@totalx_vals, \@y_vals1, \@y_vals2);

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[d/l]

      I'm confused - you did try the logical thing of doing this twice - once for the 2 sets of x-vals and once for the 2 sets of y-vals?

      I haven't yet used GD::Graph, but the syntax you gave seems to imply that 

      my @graph_data = (\@x_vals, \@y_vals)

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      is the expected format. So... 
      @x_vals = (@x_vals1, @x_vals2);
@y_vals = (@y_vals1, @y_vals2);
my @graph_data = (\@x_vals, \@y_vals);

      [download]

      If this isn't the solution, then you'll have to wait for someone who knows perl and/or GD::Graph better than me...

      Tom Melly, tom@tomandlu.co.uk
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[d/l]
[select]
        thanks for your help - but i'm trying to impose to sets of data on the same graph (e.g. with different colours). This method just merges both data-sets into 1. Cheers
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