mpleCorrelation(xVals,yVals).toFixed(3);

	const lr_results = [
	    ["Linear regression line", "y = "+linReg.b.toFixed(2)+" + "+linReg.m.toFixed(3)+"x"],
	    ["Coefficient", serie.result.estimate],
	    ["RÂ²", serie.result.r_square]
	];

	const sampling_to_string = sampling =>
              (Number.isInteger(sampling) ?  "`Linear "+sampling+"" : "`Geometric "+sampling+"");

	const format = v  => d3.format("s")(v);

	const param_benchmarks = [
	    ["LR sampling (sampling)", sampling_to_string(serie.des