我最近刚开始学习SAS，用的是朱世武那本教程，数据是ResDat提供的，而有的数据调用不出来
例如：
16   data c;
17   set resdat.stk600652;
WARNING: Some character data was lost during transcoding in the dataset RESDAT.STK600652.
18   run;

ERROR: Some character data was lost during transcoding in the dataset WORK.C.
NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.C may be incomplete.  When this step was stopped there were 0
         observations and 56 variables.
WARNING: Data set WORK.C was not replaced because this step was stopped.
NOTE: DATA statement used (Total process time):
      real time           0.00 seconds
      cpu time            0.00 seconds

不知道大家遇到这问题吗？希望牛人能解决下以及推荐几本觉得不错的教材及数据！谢谢