All Questions
17 questions
0
votes
0
answers
13
views
Creating multiple dataframe in faster way with function? [duplicate]
I need to create multiple dataframe (let say 30 dataframe) in faster way rather manually create one-by-one dataframe. anyone has answer or reference links? Thank you in advance
def dvd(y):
df = ...
- 147
1
vote
1
answer
45
views
iteration calculation based on another dataframe
How to do iteration calculation as shown in df2 as desired output ?
any reference links for this > many thanks for helping
df1
a b c
0 1 0 5
1 9 9 2
2 2 2 8
3 6 3 0
4 6 1 7
df2 ...
- 147
-1
votes
1
answer
31
views
Changing values with conditional and function in pandas/python
I have a dataframe, as per the table below A. I want to create a table with the values of table B.
I would like to compare the next value in the row with the previous value in table A.
If the next ...
- 45
-2
votes
1
answer
107
views
iteration using it.chain
I'm stuck on returning the result from the function which is checking samples for A/B test and gave the result. The calculation is correct, but somehow I'm getting the result twice. The code and ...
0
votes
1
answer
126
views
How do I create a Python function that creates values based on previous row's values?
I have a Pandas dataframe with 3 columns: Date, Return, and Result that has stock gains % in the Return column. The dates are set to daily and the index is reset.
The dataframe has hundreds of rows. I'...
-1
votes
1
answer
164
views
Conditional Iteration over a Pandas Dataframe using Function
every month I get a dataframe , so every month I will have to do some adjusts to the dataframe, I would like to create a function for just apply it on every dataframe without create the code again.
I ...
0
votes
1
answer
202
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Comparing quarterly data: Iteration in Python(Pandas) to compare multiple columns from four different excel files imported as dataframe
Dear Stackoverflow community,
I have an excel file "big_excel.xlsx", which comprises of four columns namely "date_column","efficacy", "composition" and "...
- 719
1
vote
1
answer
128
views
Multiple operations iterating over dataframe columns (apply function?)
I have a pandas dataframe with thousands of columns and I would like to perform the following operations for each column of the dataframe:
check if the value i-th and i-1-th values are in the range (...
- 3,026
-1
votes
1
answer
98
views
Making Recomendation Landmark List : How to iterate over Dataframe and perforn a function?
I have trouble with my project to make a recommendation list for landmarks. So I have a database like a graph below and I iterate function over. What I don't understand is how to perform an iteration ...
0
votes
1
answer
101
views
How do I iterate through combinations of two lists and perform a function each time?
Doing an Alphavantage API pull for historic stock data. I'm pulling one of their indicators. Instead of writing 36 separate functions and manually pulling, I'd like to iterate through the 36 possible ...
2
votes
1
answer
4k
views
How to iterate over pandas rows containing lists of string to check whether each word is in english or not?
I have a pandas dataframe which contains review texts. After text preprocessing I ended up with list of strings in each row. Now I want to iterate over each row of these lists of strings to check ...
0
votes
2
answers
1k
views
Iterate over every row in pandas dataframe and multiply all row values by one of the row values in same dataframe
I am trying to normalize row values in a dataframe. The values that need to be normalized contain the text, 'Count' in their column header. There are other columns that do not have the word 'Count' in ...
- 29
0
votes
2
answers
38
views
Use each value in a list to filter for subsets? [duplicate]
I have a large data set that I need to create several subsets for. I want to take each string value in the list to filter a column on the larger data set and save as a subset. So for each value in the ...
- 127
0
votes
2
answers
37
views
Value from iterative function in pandas
I have a dataframe and would like to have the values in one column being set through an iterative function as below.
import pandas as pd
import numpy as np
d = {'col1': [0.4444, 25.4615],
'col2'...
3
votes
1
answer
109
views
Referencing a list from list of lists
I have a 2 dataframes
One- Score Card for scoring student marks
Second One-Student dataset.
I want to apply score card on a given student dataset to compute score and aggregate them. I'm trying to ...
- 357