mcabbott questions

mcabbott answers

• How do I declare a matrix in a struct?
• How to convert a DataFrame in long format (potentially sparse) to multi-dimensional Array or NamedArray
• How to concatenate differently sized vectors in Julia?
• julia function to pick a tuple from an array of tuples
• How to concatenate matrices in diagonal form in Julia
• Convert a vector of tuples in an array in JULIA
• Optimisation of 4D tensor rotation
• `map` equivalent to 2d list comprehension
• Replacing only zeros in an array with another array's values in Julia
• Symmetric group action in Julia