set yAxis min 0 as optional for column series
i would like to set one series as column series in multi series chart , however this seems to force the xaxis min down to 0, I cant find and easy switch to have it autorange like a line series.
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Vernard Sloggett
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See http://api.highcharts.com/highcharts#plotOptions.column.threshold. Setting the threshold to null has the effect you are looking for.