Create the individual (compute the spline curve)

def birth(self):
		'''
		Create the individual (compute the spline curve)
		'''
		splineReal = scipy.interpolate.splrep(self.x, self.y.real)
		self.y_int.real = scipy.interpolate.splev(self.x_int,splineReal)
		splineImag = scipy.interpolate.splrep(self.x, self.y.imag)
		self.y_int.imag = scipy.interpolate.splev(self.x_int,splineImag)