public double standardDeviation_of_ComplexImaginaryParts() {
		boolean hold = Stat.nFactorOptionS;
		if (nFactorReset) {
			if (nFactorOptionI) {
				Stat.nFactorOptionS = true;
			} else {
				Stat.nFactorOptionS = false;
			}
		}
		double[] im = this.array_as_imaginary_part_of_Complex();
		double standardDeviation = Stat.standardDeviation(im);
		Stat.nFactorOptionS = hold;
		return standardDeviation;
	}