Why 'DataFrame' object has no attribute 'assign'?

Question

df = pd.DataFrame({'a' : np.random.randn(10), 
               'b' : np.random.randn(10), 
               'c' : np.random.randn(10)})
log_sum = np.log(np.abs(df["a"] + df['b'] + df['c']))
print log_sum
df.assign(log_sum=log_sum)
df.head()

I get the error:

AttributeError: 'DataFrame' object has no attribute 'assign'

Is the statement "New in version 0.16.0." relevant?

user2864740
– user2864740

2016-01-23 04:38:48 +00:00
Commented Jan 23, 2016 at 4:38 — user2864740
– user2864740, Commented Jan 23, 2016 at 4:38
And you can always easily do df['log_sum] = log_sum

joris
– joris

2016-01-23 12:13:53 +00:00
Commented Jan 23, 2016 at 12:13 — joris
– joris, Commented Jan 23, 2016 at 12:13

OmPrakash · Accepted Answer · 2017-11-26 13:44:37Z

3

You must be using older version of Pandas,

assign method is introduced in Version 0.16.0, doc ref

you can check your pandas version using

import pandas
pandas.__version__

upgrade pandas-

pip install --upgrade pandas

edited Nov 26, 2017 at 13:44

answered Jan 23, 2016 at 4:56

OmPrakash

3182 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Why 'DataFrame' object has no attribute 'assign'?

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related