All Questions
Tagged with namedtuple pandas
15
questions
2
votes
0
answers
46
views
Any dict-like mappable objects in Python that only show preview of contents when __repr__?
I'm looking for an object I can use to store largish dataframes and sklearn objects. Ideally I would like to store them as pd.Series because it has the behavior I'm looking for in that I can do the ...
- 30.5k
2
votes
2
answers
1k
views
How to enable row[col_name] syntax with Namedtuple Pandas from df.itertuples()
We have a DataFrame with many columns and need to cycle through the rows with df.itertuples(). Many column names are in variables and accessing the namedtuple row with getattr() works fine but is not ...
- 78
2
votes
2
answers
1k
views
Why do tuples become strings after saving to csv and reloading the dataframe (pandas)?
import pandas as pd
from random import random
from collections import namedtuple
Smoker = namedtuple("Smoker", ["Female","Male"])
Nonsmoker = namedtuple("...
- 1,432
-1
votes
1
answer
41
views
How to deal with parsing an arbitrary number of lists into a dictionary
I am parsing an XMI/XML data structure into a pandas dataframe by first decomposing it into a dictionary. When I encounter a named tuple in a list in my XMI, there appear to be a maximum of two named ...
- 2,151
1
vote
2
answers
595
views
Efficient insertion of named tuple into pandas data frame [duplicate]
I have a named tuple called "rows" if I print it, it would look as shown below. How do I efficiently (not in for loop) insert this into a pandas data frame so that I can use it to plot graphs. (Number ...
- 193
0
votes
2
answers
4k
views
How to append row from itertuples to dataframe withouth losing the index in Python?
I have the following problem:
I have a DataFrame df which looks like this:
eqpid recpid queuetime trackintime trackouttime
3723 A XYZ 2017-01-01 03:14:58 2017-...
6
votes
2
answers
2k
views
Convert a pandas dataframe into a list of named tuple [duplicate]
I am looking for the most efficient way to convert a pandas DataFrame into a list of typed NamedTuple - below is a simple example with the expected output.
I would like to get the correct type ...
- 2,526
4
votes
2
answers
7k
views
How to convert a pandas dataframe to namedtuple
How to convert a pandas dataframe to namedtuple? This task is going towards multiprocessing work.
def df2namedtuple(df):
return tuple(df.row)
- 3,911
2
votes
2
answers
430
views
Passing Column Names from a tuple to Pandas
My Scenario looks like this, where i have identified the columns having NaN values using,
nan_cols=tuple(train.columns[train.isnull().sum()>0])
Now, I need to find the correlation between these ...
- 21
6
votes
1
answer
17k
views
NamedTuple to Dataframe
I am working on retrieving metadata from youtube channels and it's videos.
Everything is going fine, but currently I am struggling to put all the information in a dataframe which I need. Here is the ...
- 465
-1
votes
1
answer
372
views
save a named tuple in all rows of a pandas dataframe
I'm trying to save a named tuple n=NamedTuple(value1='x'=, value2='y') in a row of a pandas dataframe.
The problem is that the named tuple is showing a length of 2 because it has 2 parameters in my ...
- 6,471
1
vote
1
answer
478
views
Python - Access one part of a named tuple inside a two-dimensional list
In Python, I have row data that I'm trying to set to a pandas data frame. However the cell data is a named tuple so my output data contains:
Cell(r=1,c=2,v='value').
All I want is the v from the ...
- 13
2
votes
1
answer
575
views
fillna with a namedtuple or any other class pandas
Is there any way to fillna with a namedtuple in python?
I am getting this TypeError:
from collections import namedtuple
import pandas as pd
import numpy as np
df = pd.DataFrame([0, 0, 0, 0, np.nan, ...
- 16.9k
5
votes
2
answers
1k
views
Nested dictionary of namedtuples to pandas dataframe
I have namedtuples defined as follows:
In[37]: from collections import namedtuple
Point = namedtuple('Point', 'x y')
The nested dictionary has the following format:
In[38]: d
Out[38]:
{1: {...
- 739
27
votes
2
answers
58k
views
How do I create pandas DataFrame (with index or multiindex) from list of namedtuple instances?
Simple example:
from collections import namedtuple
import pandas
Price = namedtuple('Price', 'ticker date price')
a = Price('GE', '2010-01-01', 30.00)
b = Price('GE', '2010-01-02', 31.00)
l = [a, b]
...
- 4,818