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jpp has asked 44 questions and find answers to 895 problems.

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jpp questions

Accessing category codes for Index objects in Pandas
Tracking progress in python list(map(...))
Pandas vectorised function cumsum versus numpy
Optimal HDF5 dataset chunk shape for reading rows
Select Rows with Same Id but different Values in Pandas
NumPy indexing: broadcasting with Boolean arrays
Dask dataframes: reading multiple files & storing filename in column
Efficiently return the index of the first value satisfying condition in array
Comparing numpy array with itself by element efficiently
Suppress key addition in collections.defaultdict

jpp answers

How to avoid errors when dictionary is empty?
Import from a dictionary as a multi-index pd.DataFrame
Pandas Timestamp to datetime.datetime()
Conditional select dictionary value in Python
Replace a row by a new Dataframe
Python Dictionaries and Lists
Keep CSV file's comment lines in pandas?
How to know if a value is inside a nested dictionary
Finding partial matches between two different dataframes' columns, and assigning values when matches are found
KeyError When Selecting a Column