I have a large dataset with characters and 90000 intances and I have the error ValueError: array is too big when I have the following code before the plot_kmeans_digits.py code:data2=list(csv.DictReader(open('C:\diabeticdata.csv', 'rU')))vec = DictVectorizer()data = vec.fit_transform(data2).toarray()Do you know how I can solve this error?Thanks in advance. 
sk-learn - ValueError: array is too big.
bigdata;scikit learn