rfalling_object: Simulate falling object data

In dslabs: Data Science Labs

Simulate falling object data

Description

The function simulates a falling object's position. Default parameters are for dropping a weight from the tower of Pisa.

Usage

rfalling_object(
  n = 14,
  d_0 = 55.86,
  v_0 = 0,
  g = -9.8,
  scale = 1,
  time = seq(0, 3.25, length.out = n),
  error_distribution = c("rnorm", "rt"),
  df = 3
)

Arguments

n	Sample size
d_0	Height from which object will fall in meters.
v_0	Initial velocity with which object will fall in meters per second.
g	Gravitational constant, 9.8 meters per second per seonnd
scale	The measurement errors will be multiplied by this constant.
time	Numeric vector of times, in seconds, at which measurements were taken.
error_distribution	Character. Either rnorm for normal or rt for t-distribution.
df	If using t-distribution, the degrees of freedom.

Value

A data.frame with the time, the distance travelled, and the observed distance.

Examples

dat <- rfalling_object()
with(dat, plot(time, observed_distance))
with(dat, lines(time, distance, col = "blue"))

dslabs documentation built on July 26, 2023, 5:34 p.m.