daily_volatility: daily_volatility

Description Usage Arguments Value Examples

View source: R/volatility.R

Description

Advances in Financial Machine Learning, Snippet 3.1, page 44. Computes the daily volatility at intraday estimation points.

Usage

1
daily_volatility(price, span = 50)

Arguments

price

data.table or data.frame object with first column is of type POSIXct

span

used to calculate alpha parameter in exponential moving average

Value

data.table with Datetime and Value columns

Examples

1
2
data("spy")
daily_volatility(subset(spy, select = c("index", "close")))

MislavSag/mlfinance documentation built on Sept. 14, 2021, 1:11 p.m.