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@ -160,7 +160,7 @@ nv.models.multiBar = function() {
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var groups = wrap.select('.nv-groups').selectAll('.nv-group')
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var groups = wrap.select('.nv-groups').selectAll('.nv-group')
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.data(function(d) { return d }, function(d) { return d.key });
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.data(function(d) { return d }, function(d,i) { return i });
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groups.enter().append('g')
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groups.enter().append('g')
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.style('stroke-opacity', 1e-6)
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.style('stroke-opacity', 1e-6)
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.style('fill-opacity', 1e-6);
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.style('fill-opacity', 1e-6);
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