i have a data frame I want to get column named “result” which will return the column name if it is true and nan, if any of it is not True. Expected Column Answer You could use Series.where to set the column value to either the idxmax along the second axis, so the respective column name of the firs…
Tag: pandas
Assign multiple variables from a list of file names
I have a list of file and a list of variables names I want to assign every item in var_names a read_spss function. so that ill get Thanks Answer Like the comment above the easiest way to do this is with a dictionary. That way then you can just access it like this files[‘var1’] to get the content o…
Python – Filtering dataframe based on 3 columns potentially containing a sought after value
I’m trying to take a query of recent customer transactions and match potential primary phone, cellphone and work phone matches against a particular list of customers I have. Essentially, I am taking one dataframe column (the list of customers I am trying to see if they had transactions recently) against…
SQLAlchemy engine.connect() fails for Snowflake using keypair authentication
My goal is to be able to write a pandas dataframe to Snowflake using the to_sql() function. I am able to successfuly query from Snowflake using read_sql() with no problems. It appears that to_sql() requires a slightly different configuration I can’t figure out. I’ve tried two different approaches …
Using .drop with Pandas to drop a single row by a value
Have code to send out emails, some rows have the same name of a person to send a email to, but each rows have a unique value. I’m trying to get it to send one email with all the values where there are duplicate cells in the name column with the same name, but all unique values in those rows.
How to parse guess_language to read 30000 tweets?
I am using guess_language to detect the language of the tweets for a school project. I used pandas to read the .csv file. I have around 30000 rows. However, my problem is that the guess language can only read one tweet at a time. guess_language(“Top story: ‘Massive Mental Health Crisis’ “) …
Calling round(), ceiling(), floor(), min(), max() in pandas eval
As title says, Is there a way to support round, ceiling, min, max, floor functions in pandas eval. DataFrame: abs() and sqrt() function works with pandas eval. i.e. can anyone suggest how to access rest of the functions in eval? I also tried ‘local_dict’ in eval to see if I can define custom funct…
Using .loc accessor
I’m trying to use .loc to find out sex of the youngest person here in the chart. The following did not work: Answer You can achieve it like this:
How to remove NaN on CSV?
I have a .csv file of a table consisting of 12 col and 30k rows. One of the col is ‘mentions’, some of the data are empty (NaN). I am trying to remove all the rows where mentions = NaN. I don’t want to fill it with new data. I just wanna remove those rows so they wont be part
Centering a background gradient color map for a pd.DataFrame Styler object
Unsure if it is possible to leverage matplotlib’s DivergingNorm for color maps under the framework of pandas Styler objects. As an example: Ideally only negative (positive) values would appear red (green). Answer It doesn’t look like there is an option to pass a custom normalization to background_…