Description Usage Arguments Details Value Author(s) Examples

The `grow`

method allows to expand a numeric range by a given
number, i.e. the number specified with the argument `by`

is
subtracted from the lower bound and added to the upper bound, such
that the range is grown by `2 * by`

.

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`by` |
Numeric vector of length 1 (or with a length matching the number of
rows of |

`x` |
Either a numeric vector of length 2 specifying the lower and upper bound of the range or a numeric matrix with two columns each row specifying a range. |

`...` |
Presently not used. |

The function subtracts `by`

from the first element of `x`

and adds it to the second.

Returns the numeric vector or matrix with expanded ranges.

Johannes Rainer

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