决定系数

The r 2 measure helps analysts determine how much confidence to put in specific cost predications.

回归方程决定系数R2的方法帮助分析者确定有多少信心参与特定成本预测。

Interpret the calculated values of the correlation coefficient and the coefficient of determination, and understand the relationship between these two measures of association.

诠释相关系数与决定系数等计算而得的数值，和了解这两种相关性测量的关联。

Single age variable stock volume growth model had low coefficient of determination, but it was improved a lot by introducing site index and stand density index in reparameterization.

林龄单因变量的蓄积量生长模型决定系数低，引入地位指数和密度指数再次参数化的生长模型可显著提高模型拟合度。

Results Causal-uncertainty of middle school teachers had apparent prediction function to their state and trait anxiety, and the decisive coefficients were 8.1% and 13.0% respectively.

结果中学教师自我原因不确定感对其状态焦虑和特质焦虑都有着显著的预测作用，决定系数分别为8。1%和13。0%。

The average NDVI at both the tillering and heading stages were significantly correlated with the average yield, and the R2 at heading stage reached to 0.96.

分蘖期、抽穗早期的NDVI值都与最终产量有着显著的相关，其中抽穗早期的NDVI与产量的决定系数（R2）达到了0。96。