code: public static Chart getMSDLineChart(Trajectory t, int lagMin, int lagMax) {
  		return getMSDLineChart(t, lagMin, lagMax, new MeanSquaredDisplacmentFeature(t,
  				lagMin));
  	}
docs: Plots the  MSD curve for trajectory t.
  @param t List of trajectories
  @param lagMin Minimum timelag (e.g. 1,2,3..) lagMin*timelag = elapsed time in seconds
  @param lagMax Maximum timelag (e.g. 1,2,3..) lagMax*timelag = elapsed time in seconds