Questions tagged [pandas]
Pandas is a Python library for data manipulation and analysis, e.g. dataframes, multidimensional time series and cross-sectional datasets commonly found in statistics, experimental science results, econometrics, or finance. Pandas is one of the main data science libraries in Python.
pandas
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How to add a time column that increments based on id column value in pandas?
I've an api endpoint that provides json data which when converted into a DataFrame looks something like this-
index id name value time
1 101 A 12 00:12:00
2 101 ...
- 5
0
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0
answers
15
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'Key Error' trying to Scrape Facebook with Selenium
I want to extract some data from my profile in Facebook and I'm using Chrome driver.
I want to create a Data Frame with the names of people who Liked my posts and look at some metrics about them (like ...
0
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0
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13
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Assign a table from an excel spreadsheet to a variable, so i can paste it in a website using Selenium - Python
I'm looking to be able to assign a table from an excel spreadsheet to a variable, so that i can paste it in a text field in Selenium
This is the code that i have tried
It pasted the headers of the ...
1
vote
1
answer
35
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Complicated triple sum in pandas dataframe
I have a pandas dataframe that looks like
import pandas as pd
data = {
"Race_ID": [1,1,1,2,2,2,2,2,3,3,3,4,4,5,5,5,5,5,5],
"Student_ID": [3,5,4,1,2,3,4,5,4,3,7,2,3,9,10,2,3,6,...
- 279
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1
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28
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Polars apply function to check if a row value is a substring of another string
I'm trying to check if string_1 = 'this example string' contains a column value as a substring.
For example the first value in Col B should be True since 'example' is a substring of string_1
string_1 =...
- 103
-1
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0
answers
46
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Pandas : Merge Two Dataframe using Condition
I Have a question about how to merge dataframe using conditon.
I have two dataframe
df1
Pro fg material_df1 qty_df1
1 f01 m01 1
1 f01 m02 1
1 f01 m03 1
1 f01 m05 1
2 f01 m01 2
2 ...
- 19
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26
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Convert List of JSON to Dataframe to Multiple Excel Sheets
I have list of multiple objects that I want to convert into excel and I need individual object to be on different sheets. I have looped the list then to convert to Dataframe see below list of json I ...
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21
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Showing one x tick per month on a pandas plot
I have a time series with daily data, that I want to plot, and only plot a x-tick every month. I have tried multiple approaches (including the ones described here, but it seems that pandas considers ...
- 3,637
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18
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Plotly line graph doesn't display properly on google colab
Graph doesn't display according to designated dates.
Tried to create a automated plotly line graph to convert csv files to PNG format
import pandas as pd
import plotly.express as px
def present_line(...
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16
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Pandas interpolate on 2 missing values based on different columns and other specific filter function after groupby
After a groupby on a date column I would like to interpolate on 2 specific values based on different columns and also retrieve the value of another for which the sum of two columns is minimum ...
I ...
- 451
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57
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How to vectorize groupby combination lists of two columns in Pandas Dataframe
I've a dataframe and need to group by two columns from all possible combinations of dataframe columns ['A','B','C','D','E','F','G']
import pandas as pd
d = {'A': [0,1,1,0,0,1,0,0],
'B': [1,1,0,0,...
- 41
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1
answer
32
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web scraping table using pandas
I am learning web scraping on a course on coursera. I tried the code given in the course on my Mac (I use PyCharm by the way) but I got many errors. I guess it has to do with missing libraries or ...
-3
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45
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How to set values in a dataframe column that depends if another column value is bigger than a dict/lookup table
I have a dataset with date and id columns, and I want to set a third column 'Status' where if the date is before the value in the dict/lookup table, then 'On', 'Off' if on or after the date.
For ...
7
votes
1
answer
107
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Translate Pandas groupby plus resample to Polars in Python
I have this code that generates a toy DataFrame (production df is much complex):
import polars as pl
import numpy as np
import pandas as pd
def create_timeseries_df(num_rows):
date_rng = pd....
- 700
-2
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0
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42
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Mismatched dataframe rows in python
I'm trying to convert sql code to python, where inner join is being used.
SQL CODE-
Update A
Set A.ID_New = B.[ID],
A.Type_New = B.[Type]
From ABC A
inner join XYZ B
on A.[1] = B.[1],
and A.[2] = B.[...
- 7