Hi, everyone, for example, how to match the following two datasets? Of course, the actual situation is more complex. Dataset a or b have many observations, and the number and order of observations are not always equal. This function is not work. data a; length text $200; text1="既往用药(ITT分析集)";output; text1="合并用药(ITT分析集)";output; text1="基于IRC评估的无进展生存期（PFS）汇总分析 （ITT分析集）";output; text1="按系统器官分类和首选术语总结的任意一组发生率≥5%的TEAE（安全性分析集）";output; run; data b; length text $200; text2="既往用药(全分析集/意向性治疗分析集)";output; text2="既往用药(全分析集/意向性治疗分析集)";output; text2="基于独立中心评估的无进展生存期（PFS）汇总分析-基于删失规则I（全分析集/意向性治疗分析集）";output; text2="按系统器官分类和首选术语总结的任意一组发生率≥{xx}%的TEAE（安全性分析集）";output; run;
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