stdev_transform | R Documentation |

This function changes a given standard deviation so that when a vector of samples is drawn from the given distribution, the original standard deviation will be recovered once it is back-transformed from the log or logit scale. In effect, the function "translates" a standard deviation from the natural scale to the log or logit scale for the purposes of random draws from a probability distribution.

```
stdev_transform(mu, sigma, dist)
```

`mu` |
The mean of the distribution on the natural scale. |

`sigma` |
The standard deviation of the distribution on the natural scale. |

`dist` |
The distribution to which the standard deviation should be transformed. |

The standard deviation translated to the log or logit scale.

```
mean <- 10
stdev <- 2
mean_trans <- log(mean)
stdev_trans <- stdev_transform(mean, stdev, "log")
draws <- rnorm(50, mean_trans, stdev_trans)
natural_scale <- exp(draws)
mean(draws)
sd(draws)
```

colorednoise documentation built on Sept. 22, 2023, 5:12 p.m.

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