Matthew Gunn questions

Matthew Gunn answers

• Efficient Triangular Backsubstitution in R
• Optimization using lsqnonneg function of MATLAB
• What is the fastest way/library to calculate the rank of a matrix in C++
• Is there an fmincon algorithm that always satisfies linear constraints?
• Cost function in logistic regression gives NaN as a result
• MATLAB performance benefit from clearing temporary variables?
• Feature mapping using multi-variable polynomial
• Time series aggregation efficiency
• How MATLAB code generation infers output size with nested branches
• When should I be using `sparse`?