View source: R/rfalling_object.R

rfalling_object | R Documentation |

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

```
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
)
```

`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 |

`df` |
If using t-distribution, the degrees of freedom. |

A `data.frame`

with the time, the distance travelled, and the observed distance.

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

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