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NEWS.md

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archeofrag 1.0.2

  • In frag.get.parameters() if the vertices 'layer' attribute of the graph do not have two values, the variables 'balance', 'components.balance', and 'disturbance' are not computed and NAs are returned.
  • Parameter asymmetric.transport.from for frag.simulprocess() now admit value 0 (similar to NULL, disabling this feature).
  • Revision of frag.graph.reduce: to preserve the number of connected components, the use of igraph::articulation points is introduced. A bug in the while loops is fixed with a new control through the 'is.reducible' variable.
  • Corrections in the documentation.

archeofrag 1.0.0

Released: 2024-12-16

Fourth major release.

  • Fix in the frag.layers.admixture() and frag.layers.cohesion() functions to handle pair of layers when only one layer includes fragments.
  • In the frag.layers.cohesion() and frag.layers.admixture() functions, new optionnal parameters ("morphometry", "x", "y", "z") to pass to the frag.edges.weighting() function when applied to multiple pairs of layers.
  • New frag.graph.reduce() function to reduce the number of fragments of a fragmentation graph while preserving the number of objects (i.e. connected components).
  • Fix the frag.relations.by.layers() to return a square matrix.
  • Values returned by frag.layers.admixture() and frag.layers.cohesion() are now rounded to four digits (to avoid negative admixture values).
  • Fix the ordering of the pairs of layers returned by frag.layers.admixture() to correspond with the same order returned by frag.layers.cohesion().
  • Revising and optimising frag.edges.weighting().
  • Add verbose parameter to frag.edges.weighting(), frag.get.layers.pair(), frag.get.parameters(), frag.layers.admixture(), frag.layers.cohesion().
  • Add datasets: Chauzey, Le Bout des Vergnes, Grande Rivoire, Tai, Font-Juvenal.
  • Add dependency to R (>= 3.5.0) to use serialized datasets (RData format).
  • Balance and components balance computation in frag.get.parameters() were fixed to measure the value of the spatial unit with less fragments or components, respectively. This fix might result in values different from the value get before with this function.
  • Add a 'components.balance' variable in the results of frag.simul.compare.

archeofrag 0.8.3

Released: 2022-11-16

  • add an option to remove the vertices in the frag.observer.failure() function.

archeofrag 0.8.2

Released: 2022-07-27

  • adding unit tests with testthat and test coverage analysis with covr.
  • fix the frag.simul.process() function.

archeofrag 0.8.1

Released: 2022-07-13

  • all functions from other packages are tagged with their package.
  • the RBGL is moved to the 'suggested' packages list, the functionalities related to planarity are now optional.
  • igraph functions' names are updated.
  • creation of a utils.R file, including internal functions to check the fragmentation graph and the "layer" argument.

archeofrag 0.8.0

Released: 2022-03-08

Third major release.

  • add license.
  • complete update of the vignette.

archeofrag 0.7.1

Released: 2022-02-17

  • when using frag.weight.edges() with xyz coordinates, the function now returns a graph with an edge attribute with the spatial distance between fragments
  • frag.layers.summarise() has three new parameters with default values to define the names of the colums with the cohesion and admixture values
  • the balance, disturbance, and aggreg.factor values returned by frag.get.parameters() are now rounded with two digits.
  • an error has been corrected in the asymetric.transport.from parameter of the frag.simul.process() function.

archeofrag 0.7.0

Released: 2021-04-26

Second major release, after complete revision of the documentation.

archeofrag 0.6.7

Released: 2021-04-12

  • new function frag.layers.compare() to generate simulated graphs for two deposition hypotheses, from the parameters of an observed graph.
  • new function frag.layers.summarise() for post-processing the results of the frag.layers.compare() function.
  • the frag.weight.edges() function now enables to weight the edges with morphometric and spatial distance values.

archeofrag 0.6.6

Released: 2021-03-30

  • the frag.simul.process() function has a new asymetric.transport.from parameter.
  • new features in frag.graph.plot(): if the graph has two layers, the fragments are distributed by layers in two different regions of the plot.
  • new make_sr_graph() function, to generate a connection graph from a frag.object.
  • frag.get.admixture() can now be applied to a graph with more than 2 layers.
  • frag.get.cohesion() can now be applied to a graph with more than 2 layers.
  • The edges of the graphs generated with frag.simul.process() are now internally weighted with the frag.edges.weighting() function.
  • frag.observer.failure(): new function to simulate the inaccuracy of an observer in determining the relationships between fragments.

archeofrag 0.6.0

Released: 2020-11-27

This is the first public release of the archeofrag package.