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Néstor

Astronomer at the Space Telescope Science Institute (STScI), working on exoplanet detection and characterization. More info about me in my personal webpage here.

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29 Reversing PCA back to the original variables Aug 20 '12
25 Why is chi square used when creating a confidence interval for the variance? Nov 13 '13
24 Advantages of doing “double lasso” or performing lasso twice? Sep 26 '12
17 Implementing ridge regression: Selecting an intelligent grid for $\lambda$? Jul 13 '12
17 Probability density function between -1 and 1? Jul 10 '12
13 AR(1) process with heteroscedastic measurement errors Aug 17 '13
12 Acceptance ratio in Metropolis–Hastings algorithm May 7 '12
11 Is there a difference between the “maximum probability” and the “mode” of a parameter? Apr 17 '12
11 Ridge and LASSO given a covariance structure? Jul 20 '12
10 “Central limit theorem” for weighted sum of correlated random variables Aug 13 '12
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