(op, op_str, a, b, raise_on_error, use_numexpr, **eval_kwargs)
210 return _evaluate(op, op_str...='ignore'):
---> 64 return op(a, b)
65
TypeError: must be str, not int
During handling...: must be str, not int
During handling of the above exception, another exception occurred:
TypeError...Could not operate 5 with block values must be str, not int
# 行索引名设为INSTNM,用UGDS_过滤出本科生的种族比例
In[38]: college...Out[49]: True
# 所有和np.nan的比较都返回False,除了不等于:
In[50]: 5 > np.nan
Out[50]: False
In[51]: np.nan > 5
Out