func (lrs LinearRegressionSeries) GetStyle() Style {
	return lrs.Style
}
GetStyle returns the line style.
package chart
import (
	"fmt"
)
var (
	_ Series                    = (*LinearRegressionSeries)(nil)
	_ FirstValuesProvider       = (*LinearRegressionSeries)(nil)
	_ LastValuesProvider        = (*LinearRegressionSeries)(nil)
	_ LinearCoefficientProvider = (*LinearRegressionSeries)(nil)
)
type LinearRegressionSeries struct {
	Name  string
	Style Style
	YAxis YAxisType
	Limit       int
	Offset      int
	InnerSeries ValuesProvider
	m       float64
	b       float64
	avgx    float64
	stddevx float64
}
func (lrs LinearRegressionSeries) Coefficients() (m, b, stdev, avg float64) {
	if lrs.IsZero() {
		lrs.computeCoefficients()
	}
	m = lrs.m
	b = lrs.b
	stdev = lrs.stddevx
	avg = lrs.avgx
	return
}
func (lrs LinearRegressionSeries) GetName() string {
	return lrs.Name
}