Line Chart Example

		let tooltipLine = function(label, data) {
			return data.y;
		}
		I'm loading the data in via componentDidMount and pushing the array to state. The data is loading fine. I just get
		errors when trying to use the toolTip functionality. Do I need to define "Xscale on my own?".
		return (	
			<LineChart
				data={this.state.data}
				width={825}
				height={250}
				margin={{top: 10, bottom: 50, left: 50, right: 10}}
				tooltipHtml={tooltipLine}
			/>