NEWS

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coda.base 0.5.3

• sbp_basis() completes partition to obtain a basis

coda.base 0.4.3

• center() and gmean() functions incorporated.

coda.base 0.4.2

• Pairwise default name changed to lr instead of alr.
• Sparse matrices are used for logcontrast matrices of balances.
• Problem with constrained principal balances detected and solved.

coda.base 0.3.2

• 'coord()' and 'comp()' are included as a shorter names of 'coordinates()' and 'composition()'.
• Basis names taken from composition.
• Coordinates based on pairwise log-ratios available with ‘pairwise_basis()' or basis = ’pw' in function coordinates().
• Parameter label removed in function coordinates().

coda.base 0.3.1 (2020-05-14)

• PB constrained approximation available. Adaptation of code provided by J.A.Martín-Fernández.
• PB exact algorithm rewritten to improve performance.
• PB local search algorithm removed.

coda.base 0.2.2 (2020-04-16)

• MASS dependence removed
• Code reorganised to avoid repetition.

coda.base 0.2.1 (2019-07-02)

• ?_basis functions always return a matrix
• consistencies between methods improved

coda.base 0.1.12 (2019-04-15)

• coordinates function keeps row.names attribute
• Principal components calculations are done using svd function which is faster than princomp
• sbp_basis function does not need package to be loaded, can run as coda.base::sbp_basis()

coda.base 0.1.11 (2019-01-15)

• Principal components coordinates uncentered.
• Sequential binary partition can be defined using a matrix with -1,0 and 1's.
• CoDaPack's basis included.
• A vignette explaining how to build coordinates has been included.

coda.base 0.1.10 (2018-08-06)

• Principal Balances included as direct method in coordinates function.
• Coordinates function filters non-valid compositions.

coda.base 0.1.9 (2018-05-09)

• Modifications included to rcran policies.

coda.base 0.1.8 (2017-12-03)

• Exact algorithm for Principal Balances included.
• Bug in lsearch base in principal components solved.

coda.base 0.1.7 (2017-09-26)

• Problem with function composition using 'clr' basis solved.
• 'coda.base.basis' option included to hide the basis when printing the coordinates.
• New method which uses the principal components included in pb_basis.
• Documentaion improved.