ts_acceleration_augment {healthyR.ts} | R Documentation |
Augment Function Acceleration
Description
Takes a numeric vector and will return the acceleration of that vector.
Usage
ts_acceleration_augment(.data, .value, .names = "auto")
Arguments
.data |
The data being passed that will be augmented by the function. |
.value |
This is passed |
.names |
The default is "auto" |
Details
Takes a numeric vector and will return the acceleration of that vector. The acceleration of a time series is computed by taking the second difference, so
(x_t - x_t1) - (x_t - x_t1)_t1
This function is intended to be used on its own in order to add columns to a tibble.
Value
A augmented tibble
Author(s)
Steven P. Sanderson II, MPH
See Also
Other Augment Function:
ts_growth_rate_augment()
,
ts_velocity_augment()
Examples
suppressPackageStartupMessages(library(dplyr))
len_out = 10
by_unit = "month"
start_date = as.Date("2021-01-01")
data_tbl <- tibble(
date_col = seq.Date(from = start_date, length.out = len_out, by = by_unit),
a = rnorm(len_out),
b = runif(len_out)
)
ts_acceleration_augment(data_tbl, b)
[Package healthyR.ts version 0.3.1 Index]