英文:
Data frame losing ability to call method when passed as an argument
问题
在我正在处理的脚本中，我有一个数据框变量，我将其作为参数传递给另一个方法。之前在原始方法中，如果我调用data_frame.loc[x]，它会顺利运行，但是现在在下一个方法中，通过data_frame传递进来后，它不再识别这个方法。
错误信息为：
对象没有属性'loc'
尝试使用.loc方法，但出现了错误。
英文:
In a script I'm working on, I have a data frame variable I am passing as an argument to another method. Previously in this original method, if I were to call data_frame.loc[x] it would work without issue, however now in the next method with data_frame passed through, it does not recognize this method.
def _validate_result_for_attribute(self, result_file, test_summary):
data_frame = GazeTest.get_data_frame_from_csv(result_file)
for i in range(len(data_frame)):
if not (self._validate_eyes_available(data_frame)):
data_frame = data_frame.drop([i])
self._update_test_case_fields(data_frame, result_file, test_summary)
def _validate_eyes_available(data_frame, index):
# Checking if the each eye is available
if (data_frame.loc[index, RIGHT_EYE_STATUS] == 1 and
data_frame.loc[index, LEFT_EYE_STATUS] == 1):
return True
else:
return False
Error reads;
object has no attribute 'loc'
Tried to use .loc method but was given an error.
答案1
得分: 0
我看到你的代码有一个问题：当你调用_validate_eyes_available(data_frame)时，你没有传递索引。这可能会导致在这个data_frame.loc[index, RIGHT_EYE_STATUS]中出现错误，因为你在使用索引时没有传递它。
关于loc属性错误，你需要确保data_frame变量实际上是一个数据框架。只需打印它并在传递之前确保它
print(type(data_frame))
英文:
I see an issue in your code: when you call _validate_eyes_available(data_frame) You didn't pass the index. this might cause an error for you in this data_frame.loc[index, RIGHT_EYE_STATUS] since you using index and you didn't pass it.
regarding the loc attribute error, you need to make sure that data_frame variable is actually dataframe. just print it and make sure before passing it
print(type(data_frame))
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