numpy

JSON serialization of NumPy arrays in nested Python structures with a custom JSONEncoder

Jan. 10, 11:00

NumPy Boolean Indexing with Slicing: Why Shapes Look Transposed and How to Preserve Axis Order

Jan. 6, 21:00

NumPy Broadcasting: Multiply Last-Axis Slices via y[..., np.newaxis] and Ditch Python Loops

Jan. 6, 15:00

Fix scalar NaN after Pandas left merge: replace with NumPy NaN arrays of consistent length

Jan. 6, 09:00

Fixing NumPy Aliasing When Building a 52-Card Deck: Use .copy(), Avoid Concatenation Traps

Dec. 29, 21:00

Fixing NumPy genfromtxt with commented headers: names=True, dtype=str pitfalls and reliable parsing

Dec. 27, 03:00

Fixing NumPy concatenate for 2D image blocks: axis rules, empty arrays, and efficient appends

Dec. 27, 01:00

Fixing np.genfromtxt usecols vs names mismatch in NumPy when reordering CSV columns (2-column trap)

Dec. 25, 13:00

Fix pandas DataFrame row assignment with NumPy arrays: avoid inhomogeneous shape with explicit keys

Dec. 23, 05:00

JAX vs NumPy Performance for Array Reshaping: Why Simple Ops Seem Slower and How JIT Helps

Dec. 22, 03:00

Matplotlib Live Streaming Plot in Python: Fix Timestamp Errors and Efficient Updates

Dec. 20, 19:00

Compute Increasing Run Lengths in NumPy with Vectorized cumsum and maximum.accumulate Reset Trick

Dec. 18, 23:00

Fixing Quadratic Volterra Image Enhancement: Use the Mapped Base, Not Normalized, in Composition

Dec. 18, 21:00

NumPy: Extract a Single Column with Tuple Indices — Avoid Advanced Indexing Pitfalls

Dec. 18, 07:00

Rust vs NumPy np.repeat Performance: SIMD, memcpy, and Contiguous Copies for Poisson Bootstrap

Dec. 18, 05:00

NumPy Quintic Hermite vs SciPy BPoly.from_derivatives: Benchmark, Causes of the Gap, and Better API

Dec. 15, 23:00

Vectorized L1 Distance Across Rows in NumPy: Pairwise Broadcasting to Replace Python Loops

Dec. 14, 23:00

Drop rows with internal NaNs in pandas time series using vectorized masks and cummin

Dec. 13, 15:00

Detect Missing and Partial Years in Asset Timelines with Pandas (Exclude Current Year)

Dec. 12, 17:00

Nearest Displacement Alignment Between Two Arrays in Python: Why NumPy Fails and a JIT-Ready Fix

Dec. 9, 09:00

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