园艺疗法起源于17世纪末，是一门集园艺、医学、心理学为一体的交叉性边缘学科。
Horticultural therapy, originated at the end of 17th century, is an intercross subject including horticulture, medicine and psychology.
本文结合实例介绍了交叉试验的计量与计数资料的统计方法。先比较两个顺序组每例的疗效和，以检验两种疗法残余效应的差别。
The inference concerning a difference between the two carry-over effects may be tested by comparing the intrasubject sums of patients in the A-B sequence with that in the B-A sequence.
本文结合实例介绍了交叉试验的计量与计数资料的统计方法。先比较两个顺序组每例的疗效和，以检验两种疗法残余效应的差别。
The inference concerning a difference between the two carry-over effects may be tested by comparing the intrasubject sums of patients in the A-B sequence with that in the B-A sequence.
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