ValueError: The truth value of a DataFrame is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

[Rahulvks]

Hi when i run this piece of code am getting below error

`for index, review in data['Text'].iteritems():

#Pass a single review to TA (one by one):
json_output = tone_analyzer.tone(data, content_type='text/plain')    

#Traverse the heirarchy of result
for i in json_output['document_tone']['tone_categories']:
    for j in i['tones']:
        #Append the attributes to the data
        data.set_value(index, j['tone_name'], j['score'])

`
ValueError: The truth value of a DataFrame is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().