Description Usage Arguments Value Author(s) See Also Examples

Uses `AGRdiff`

, `PGR`

and
`RGRdiff`

to calculate growth rates continuously
over time for subsets of the values of `response`

and
stores the results in `data`

. The subsets are those values
with the same levels combinations of the factors listed in
`INDICES`

.

1 2 3 | ```
splitContGRdiff(data, responses, INDICES,
which.rates = c("AGR","PGR","RGR"), suffices.rates=NULL,
times.factor = "Days")
``` |

`data` |
A |

`responses` |
A |

`INDICES` |
A |

`which.rates` |
A |

`times.factor` |
A |

`suffices.rates` |
A |

A `data.frame`

containing `data`

to which has been
added a column for the differences between the `times.factor`

,
if it is not already in `data`

, and
columns with growth rates. The name of the column for `times.factor`

differences will be the `times.factor`

with `".diff"`

appended and,
for each of the growth-rate columns will
be the value of `response`

with one of `".AGR"`

, `".PGR"`

or `"RGR"`

or the corresponding value from `suffices.GR`

appended.

Chris Brien

1 2 3 | ```
data(exampleData)
longi.dat <- splitContGRdiff(longi.dat, response="Area.smooth",
INDICES = "Snapshot.ID.Tag", which.rates=c("AGR", "RGR"))
``` |

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