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gappy

New York, NY

twitter.com/gappy3000

I like one-letter languages with no modifiers.

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Top Questions

Suitable functional language for scientific/statistical computing?

r haskell lisp scheme language-comparisons asked Aug 10 '09 at 20:27

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Exception handling in R

r exception-handling asked Apr 12 '10 at 14:26

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What are the breakthroughs in Statistics of the past 15 years?

mathematical-statistics asked Jan 21 '11 at 2:53

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Visualizing a million, PCA edition

r data-visualization pca asked Mar 3 '11 at 22:59

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How do macro funds manage risk and model asset returns? Do they use factor models?

risk risk-management risk-models macro asked Feb 9 '11 at 2:14

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Any research on how natural language processing can be used to forecast stocks?

quant-trading-strategies research equities forecasting prediction asked Feb 9 '11 at 4:12

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Most successful investors using academic-based framework?

quant-trading-strategies research factor-models academia big-list asked Apr 16 '11 at 14:41

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Are there ways to measure the risk aversion of a representative investor, based on publicly available market data?

research reference-request market risk-premium asked Feb 9 '11 at 2:03

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Plotting color map with zip codes in R or Python

python graphics r map zipcode asked Sep 17 '09 at 22:50

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Is there an R equivalent of the pythonic “if name == ”main“: main()”?

python r asked Jun 3 '10 at 17:13

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Top Answers

The Two Cultures: statistics vs. machine learning?

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Python as a statistics workbench

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What are the popular methodologies to minimize data snooping?

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Create new dummy variable columns from categorical variable

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What concepts are the most dangerous ones in quantitative finance work?

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Lévy alpha-stable distribution and modelling of stock prices.

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How do strategies deal with corporate actions?

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What programming languages are most commonly used in quantitative finance?

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Switching from C++ to R - limitations/applications

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What is the most useful R trick?

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Is there a standard model for market impact?

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Optimization packages for R

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is beta of a portfolio always meaningful?

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How does the “risk-neutral pricing framework” work?

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What concepts are the most dangerous ones in quantitative finance work?

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What's the difference between volatility and variance?

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How can I go about applying machine learning algorithms to stock markets?

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C for R programmers - recommended resources/approaches once past the basics

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What can MATLAB do that R cannot do?

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Variable selection procedure for binary classification

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Clojure versus R: advantages and disadvantages for data analysis

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How does random forest generate the random forest

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Goodness of fit functions in R

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Introduction to statistics for mathematicians

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Motivation for Kolmogorov distance between distributions

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What is the 'fundamental' idea of machine learning for estimating parameters?

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Summary of “Large p, Small n” results

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What are the breakthroughs in Statistics of the past 15 years?

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Maximum number of independent variables that can be entered into a multiple regression equation

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How to organize large R programs?

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