Error analysis of fruit diameter and length simulation in the spring and autumn of 2011, 2012, and 2013.

t and u: Regression coefficient determined by simple linear regression Y = a+bX, where estimated values = X, measured values = Y;v: coefficient of determination;w: Willmott agreement index;x: Mean absolute error;y: Mean bias error;Z: Root mean square error.Error analysis of fruit diameter and length simulation in the spring and autumn of 2011, 2012, and 2013.t与u：基于简单线性回归模型Y = a+bX求得的回归系数，其中估计值以变量X表示，实测值以变量Y表示；v：决定系数（coefficient of determination）；w：威尔莫特一致性指数（Willmott agreement index）；x：平均绝对误差（Mean absolute error）；y：平均偏置误差（Mean bias error）；Z：均方根误差（Root mean square error）。针对2011、2012及2013年春秋两季果实直径与长度模拟结果的误差分析。