by Patrick Burns.
Abstract: A recent Barron’s article examined the efficacy of stock recommendations on the television show Mad Money. Statistical analyses of stock recommendations are scrutinized here in detail, and a powerful analysis using random portfolios is suggested. Differences between simple returns and log returns are discussed, as is the usefulness of the statistical bootstrap. The cost to individuals of trading stocks can easily overwhelm even quite good recommendations.
jun 25, 26
Towards the basic R mindset. Previously The post ”A first step towards R from spreadsheets” provides an introduction to switching from spreadsheets to R. It also includes a list of [...]
jun 25, 26
I failed to find Kahneman’s book in the economics section of the bookshop, so I had to ask where it was. ”Oh, that’s in the psychology section.” It should have [...]
jun 25, 26
An introductory comparison of using the two languages. Background R was made especially for data analysis and graphics. SQL was made especially for databases. They are allies. The data structure [...]