Description Usage Arguments Details
This is a convenience function, modeled after
ggplot2::expansion()
, for generating extension vectors for the extend_*
parameters of landmarks_maxmin()
and landmarks_lastfirst()
.
1 | extension(mult = 0, add = 0)
|
mult |
multiplicative extension factor; added to |
add |
additive extension factor; added to parameter after multiplication. |
The parameter num
is extended to num * (1 + extend_num[[1L]]) + extend_num[[2L]]
, and other parameters are extended analogously.
These extensions are used to generate covers whose sets are more numerous or larger than strictly necessary to cover the finite metric space. When performing topological analysis, e.g. constructing a nerve complex, redundant overlap may be necessary to capture essential features of the data.
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