Non-Negative Conjugate-Gradient Minimizer (nonneg.cg)
Minimize a differentiable function subject to all the variables being non-negative (i.e. >= 0), using a Conjugate-Gradient algorithm based on a modi …

Sample Size Computation for Fixed N with Optimal Reward (ssev)
Computes the optimal sample size for various 2-group designs (e.g., when comparing the means of two groups assuming equal variances, unequal variances, …

Time Your Codes (timeR)
Provides a ‘timer’ class that makes timing codes easier. One can create ‘timer’ objects and use them to record all timings, and extract recordings as d …

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