jpp

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jpp has asked 47 questions and find answers to 993 problems.

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jpp questions

Accessing methods via getattr
Pandas dataframe to structured array with Boolean series
Dot-multiplying large dense matrices of different dtype (float x boolean)
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

jpp answers

Using np.where to create a new column in pandas df based on conditions
Pandas DataFrame: Why I can't change the value of one column based on value of another through row iteration?
Python - Concatenate CSV files in a specific directory
How can I split a string into 2 strings using a delimiter
Pandas - unite completing columns
Nested dictionary to pandas DataFrame
Code to find unique elements among lists / sets
comparing nested dictionaries with different keys
Find index of changing value between two arrays
Change the name of excel worksheet with pandas