Sep 13, 2021 · Volatility is the (typically annualized) standard deviation of returns over a given period. The exact definition of volatility depends on some conventions (percentage returns vs …

Nov 3, 2009 · The volatility of a variable does not change the place in which a variable is stored. What it changes is the semantics around how it is accessed with respect to reads and writes. I …

Nov 5, 2020 · psycopg2.errors.InvalidFunctionDefinition: create function must specify volatility attribute (IMMUTABLE|STABLE|VOLATILE) Where exactly do I put this attribute in my query?

Oct 29, 2008 · volatile in C actually came into existence for the purpose of not caching the values of the variable automatically. It will tell the compiler not to cache the value of this variable. So it …

How to avoid "NameError: name is not defined" when using a class above its definition Asked 12 years, 10 months ago Modified 3 months ago Viewed 885k times

4 As per intuitive definition taken from Ernest Chan's "Algorithmic trading" (p.44): Intuitively speaking, a “stationary” price series means that the prices diffuse from its initial value more …

AttributeError: 'module' object has no attribute 'hi' What does the error mean? How do I fix it?

Apr 22, 2017 · Did your textbook say "time dependent", or "time variant"? It may be paraphrasing Bill Inmon's definition that a data warehouse is subject oriented, integrated, time variant, and …

Jun 19, 2023 · The volatile keyword in C++ was inherited it from C, where it was intended as a general catch-all to indicate places where a compiler should allow for the possibility that …

Jul 6, 2023 · What is the sT variable defined as here? I don't see a definition. What is the for loop for j in range(0, n_simulation) doing exactly? From context it seems like it should be the stock …