逐步回归程序 stepwise regression: 分段回归; 逐步回避; 逐步回归分析forward stepwise regression: 前向逐步回归stepwise logistic regression: 逐步逻辑回归stepwise multiple linear regression: 逐步多重线性回归stepwise polynomial regression: 逐步多项式回归下载手机词典可随时随地查词查翻译