Alejandro Morales
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Estimating variance: should I use n or n - 1? The answer is not what you think
Estimates of population parameters based on samples are not exact: there is always some error involved. In principle, one can estimate …
Last updated on
Sep 1, 2019
Numerical methods
,
R
,
Statistics
Maximum likelihood estimation from scratch
Maximum likelihood estimates of a distribution Maximum likelihood estimation (MLE) is a method to estimate the parameters of a random …
Last updated on
Aug 26, 2019
R
,
Numerical methods
,
Statistics
Beyond normality: the bootstrap method for hypothesis testing
tl;dr: Parametric bootstrap methods can be used to test hypothesis and calculate p values while assuming any particular population …
Aug 18, 2019
R
,
Statistics
,
Numerical methods
Where do p-values come from? Fundamental concepts and simulation approach
tl;dr: P-values are tail probabilities calculated from the sampling distribution of a sample-based statistic. This sampling …
Aug 10, 2019
R
,
Statistics
,
Numerical methods
Automatic Differentiation with Dual Numbers
tl;dr: Given any model that maps inputs to outputs, Dual Numbers can be used to calculate the exact derivative of any output with …
Aug 4, 2019
Julia
,
Numerical methods
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