I have a file containing experimental parameters where each row is a different trial & each column is a separate parameter for the experiment such that a different combination of parameters such as sound & text is chosen at each trial eg. 'Sound': blue, 'Text': red etc. These parameters are stored in a csv & opened using pandas: parameters = pd.read_csv('Parameters.csv') Sound_list = parameters['Sound'] Text_list = parameters['Text'] The for loop is iterating through an experimental loop in Psychopy (not the parameters list itself) but even using the following I can't get it to work. for i in range(0,10): n = range(0,len(Sound_list),1) index = random.choice(n) Sound_to_play = Sound_list.pop(index) Text_to_show = Text_list.pop(index) I am trying to pop each trial from the list such that each combination is shown the same number of times however I get the following error: Traceback (most recent call last): File "<ipython-input-4-9fe2444288e3>", line 4, in <module> Sound_to_play = Sound_list.pop(index) File "/opt/anaconda3/lib/python3.7/site-packages/pandas/core/generic.py", line 790, in pop result = self[item] File "/opt/anaconda3/lib/python3.7/site-packages/pandas/core/series.py", line 871, in __getitem__ result = self.index.get_value(self, key) File "/opt/anaconda3/lib/python3.7/site-packages/pandas/core/indexes/base.py", line 4405, in get_value return self._engine.get_value(s, k, tz=getattr(series.dtype, "tz", None)) File "pandas/_libs/index.pyx", line 80, in pandas._libs.index.IndexEngine.get_value File "pandas/_libs/index.pyx", line 90, in pandas._libs.index.IndexEngine.get_value File "pandas/_libs/index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc File "pandas/_libs/hashtable_class_helper.pxi", line 997, in pandas._libs.hashtable.Int64HashTable.get_item File "pandas/_libs/hashtable_class_helper.pxi", line 1004, in pandas._libs.hashtable.Int64HashTable.get_item KeyError: 0 Does anyone know how to fix this? Thank you! Continue reading...
