How can the graph be adjusted to ensure that both lines extend to the edge of the graph and that the x-axis values are displayed accurately?

The graph can be adjusted by setting the x-axis limits to ensure that both lines extend to the edge of the graph. This can be done by calculating the minimum and maximum x-axis values for both lines and then setting the x-axis limits accordingly. Additionally, the x-axis values can be displayed accurately by adjusting the tick marks and labels. 

// Calculate the minimum and maximum x-axis values for both lines
$minX = min(min(array_column($data1, 'x')), min(array_column($data2, 'x')));
$maxX = max(max(array_column($data1, 'x')), max(array_column($data2, 'x')));

// Set the x-axis limits
$graph->xaxis->Set($minX, $maxX);

// Adjust tick marks and labels for accurate x-axis values display
$graph->xaxis->SetTextLabelInterval(1);
$graph->xaxis->SetTextLabelInterval(1);

Keywords

graph adjustment lines x-axis accuracy

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