So if I make a dictionary like
dictionary = {'first': array([1,2,3,4,5]), 'second': array([1,2,3,4,5])}
and then if have to somehow save it to a file, how do I do it? I tried pickling but it take a long time to pack and unpack the data at the start and end of the program as I am going to use a big dataset.
What should I do?
Using numpy.save and numpy.load is much faster
import numpy as np
dictionary = {'first': array([1,2,3,4,5]), 'second': array([1,2,3,4,5])}
# to save
np.save('data.npy', dictionary)
# to load
dictionary = np.load('data.npy')
Create a dictionary then use the dictionary to create a dataframe then call the to_csv method
dictionary = {'first': [1,2,3,4,5], 'second': [1,2,3,4,5]}
df=pd.DataFrame(dictionary)
df.to_csv('myfile.csv')
How about using pandas to_csv function to save it into a csv file:
import pandas as pd
dictionary = {'first': np.array([1,2,3,4,5]), 'second': np.array([1,2,3,4,5])}
pd.DataFrame(dictionary).to_csv('data.csv')
