R2 generally increases when a regressor is added to a regression.
当回归中加入另外的解释变量时，R2通常会上升。
2
The condition, which they imposed on the distribution of the regressor variable X in their construction of the estimators, is very restrictive.
但在把他们的估计中，对自变量的分布加上了很强的限制性条件。
3
For increasing the speed of convergence of the signed regressor constant modulus algorithm (SRCMA), a fast SRCMA algorithm suitable for real BPSK signals is presented.