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jpp has asked 48 questions and find answers to 1073 problems.

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jpp questions

Improving performance on comparison algorithm np.packbits(A==A[:, None], axis=1)
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

jpp answers

Numpy Where with more than 2 conditions
Pandas.read_csv: backslash delimiter required?
Pandas: Grouping rows with same key in one row
How Do I Fill Blank Space Before and After Filled Cells?
Creation of numpy array from two arrays, such that alternate indices contain elements from different arrays [duplicate]
Python Remove brackets from arrays [duplicate]
Selecting a range of columns in a dataframe
Pandas shift based on different values to calculate percentages
Key error when joining dfs in Pandas
Compare a dictionary with other and select only those keys which are present in the other