Is there a way to concatenate the content of the respective cells of two different n * n data-frames within cells in pandas? For example: Say I have two data-frames df1 and df2. df1 looks like this: Index Score_1 Score_2 Family_1 123 456 Family_2 789 1011 df2 looks like this: Index Score_1 Score_2 Family_1 A …
Tag: pandas
How to pivot a table based on the values of one column
let’s say I have the below dataframe: which looks like this: As you can see I have my wanted columns as rows in col1 and not all values have a Phone number, is there a way for me to transform this dataframe to look like this: I have tried to transpose in Excel, do a Pivot and a Pivot_Table: But
Combine dataframes based on multiple conditions in python
Table A Table B Table C These are example tables that represent dataframes that I’m going to create from seperate excel sheets. Basically there’s a many to many relationship going on and I want to be able to create a combined sheet that will roll up the “amount” total (from Table A) fo…
Find if any column in pandas dataframe is NULL and state this in new column
I have a dataframe, something like this I want to create a new column that contains True if any other column is null and False if not. How do I do this? Answer There are 2 functions for that: pandas.isna and pandas.any:
How to stream DataFrame using FastAPI without saving the data to csv file?
I would like to know how to stream a DataFrame using FastAPI without having to save the DataFrame to a csv file on disk. Currently, what I managed to do is to stream data from the csv file, but the speed was not very fast compared to returning a FileResponse. The /option7 below is what I’m trying to do.…
find missing datas between two tables with similar columns python
I have two dataframes with 2 similar columns “date” and “id_number” and I want to find all the id_number missing from the second table to compare. Here’s my code: import pandas as pd Answer If need compare per date and id_number use left join with indicator parameter: Or if need …
multiple rows into single row in pandas
I wish to flatten(I am not sure whether is the correct thing to call it flatten) the columns with rows. multiple rows into single row with column change to column_rows I have a dataframe as below: my current output is: my expected otput: from shape (4,4) to (1, 16) Answer Update let’s use the walrus ope…
Dropping rows and finding the average of a speific column
I am trying to remove specific rows from the dataset and find the average of a specific column after the rows are removed without changing the original dataset Answer can you try this? I think there was a typo in your code
populating dataframe column from BOOLEAN column with TRUE value
I have this df: Then I want create a new column, df[‘category’] that takes in as value, the column’s name whose value is true. So that df[‘category’] for each TRUE value column as follows: NO 2 columns have TRUE value in a row. Expected output: Answer Simple..use idxmax along axi…
How to search and select column names based on values?
Suppose I have a pandas DataFrame like this I want (a) the names of any columns that contain a value of 2 anywhere in the column (i.e., col1, col3), and (b) the names of any columns that contain only values of 2 (i.e., col3). I understand how to use DataFrame.any() and DataFrame.all() to select rows in a Data…