Get list of values to provide to `lines`

argument of `dataMapping`

objects.
The `lines`

are internally used as argument of `geom_hline`

and `geom_abline`

from `ggplot2`

## Arguments

- foldDistance
Numeric values

**Caution**: this argument is meant for log scaled plots and since fold distance is a ratio it is expected positive. In particular, line of identity corresponds to a`foldDistance`

of`1`

.

## Examples

```
# Get lines for identity and 2-fold distance
getLinesFromFoldDistance(c(1, 2))
#> [[1]]
#> [1] 1
#>
#> [[2]]
#> [1] 2.0 0.5
#>
# Create dataMapping with lines identity and 2-fold distance
dataMapping <- ObsVsPredDataMapping$new(
x = "predicted",
y = "observed",
lines = getLinesFromFoldDistance(c(1, 2))
)
```