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jpp has asked 43 questions and find answers to 845 problems.

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jpp questions

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
How to efficiently partial argsort Pandas dataframe across columns

jpp answers

creating a pandas dataframe based on cell content of two other dataframes
Why the type of pd.DataFrame every items is float, but the dtype of pd.DataFrame is object?
Appending to dictionary with loop
export to csv based on column values in pandas
Python sort() issue with negative values
How to add a second level column header/index to dataframe by matching to dictionary values?
How to nullify all entries except for argmax?
Adding two columns in Python
Ordering and filtering data from csv.dictreader
Python - Call a Function on a Condition