jpp

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jpp has asked 43 questions and find answers to 870 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

Total sum amount per month using date time in Python
Finding smallest possible difference between lists of unequal length
Efficiently dropping rows from a DataFrame if some row-values are identical with row-values in a second DataFrame
ValueError: time data '10/11/2006 24:00' does not match format '%d/%m/%Y %H:%M'
Convert date from string format to OLE automation date
Adding a list of Pandas series
pandas change the order of columns
Filtering csv file based on user input with python
Pandas groupby 0 value if does not exist
Fill values in a numpy array given a condition