Df to np array

Make pandas df from np array

numpy_data = np.array([[1, 2], [3, 4]])
df = pd.DataFrame(data=numpy_data, index=["row1", "row2"], columns=["column1", "column2"])
print(df)
>>>
  column1  column2
row1        1        2
row2        3        4

Source: kite.com

Numpy arrauy to df

numpy_data = np.array([[1, 2], [3, 4]])
df = pd.DataFrame(data=numpy_data, index=["row1", "row2"], columns=["column1", "column2"])
print(df)

Df to np array

df = pd.DataFrame({"A": [1, 2], "B": [3.0, 4.5]})
>>> df.to_numpy()
array([[1. , 3. ],
       [2. , 4.5]])

Source: pandas.pydata.org

Convert pandas dataframe to numpy dataframe

DataFrame.to_numpy(dtype=None, copy=False, na_value=<object object>)

Np array to df

import numpy as np
import pandas as pd

my_array = np.array([[11,22,33],[44,55,66]])

df = pd.DataFrame(my_array, columns = ['Column_A','Column_B','Column_C'])

print(df)
print(type(df))

Source: datatofish.com

List dataframe to numpy array

df.values

array([[nan, 0.2, nan],
       [nan, nan, 0.5],
       [nan, 0.2, 0.5],
       [0.1, 0.2, nan],
       [0.1, 0.2, 0.5],
       [0.1, nan, 0.5],
       [0.1, nan, nan]])

Source: stackoverflow.com

Similar codes

-3 votes223 views2 answers
How to move turtle forward in python
Python
0 vote200 views1 answer
Pandas plot column titles vertical
Python
5 votes211 views3 answers
Python subplot space between plots
Python
0 vote199 views1 answer
How to have framer read json timestamps
Python
3 votes212 views1 answer
Np append row
Python
1 vote274 views1 answer
Flask authentication user without database
Python Flask
4 votes205 views1 answer
Return python meaning
Python
23 votes206 views6 answers
Check tensorflow version
Python
-1 vote204 views1 answer
Matrix python math
Python
1 vote195 views1 answer
TypeError: exceptions must derive from BaseException
Python