spEDM - spEDM 1.8

new

• Provide new mechanisms for variable interaction in the spatial logistic map (#772).

• Introduce configurable distance metrics for cross mapping (#761).

• Enable alternative styles of spatial cross-sectional embedding (#755).

enhancements

• Safeguard transient removal logic in spatial logistic map to prevent index errors (#744).

• Adjust the default E range in the simplex generic to 2:10 to support more robust reconstruction of state spaces (#739).

• Introduce multithreading in distance-related computations where applicable to improve runtime efficiency (#718).

• Display p-value annotation for maximum library size in cross mapping visualization legend (#710).

breaking changes

• Prevent unreliable predictions and potentially alter results when NaNs are present in cross mapping (#747).

• Rename coordinate columns in population density case csv to lon and lat (#741).

- C++
Published by SpatLyu 6 months ago

spEDM - spEDM 1.7

new

• Provide R-level API and vignette for spatial logistic map (#609,#612).

enhancements

• Replace logical vectors with integer index vectors for lib and pred in simplex and s-mapping forecasting sources (#632).

• Prevent duplicate generic registrations and simplify method definitions (#627).

• Unify parameter descriptions to lowercase (#570).

• Introduce confidence interval ribbon support in plot method for gccm results (#550).

breaking changes

• Refine randomization strategy in spatial causality test (#643).

• Symbolization C++ functions now compute medians from lib subset only (#599).

• Users must now use detrend instead of trend.rm (#559).

• Enable column parameter in simplex() and smap() and rename columns parameter to column in multiview() (#565).

bug fixes

• Fix bug in plot method for gccm results where legend labels did not correctly match the corresponding line colors (#552).

- C++
Published by SpatLyu 8 months ago

spEDM - spEDM 1.6

new

• Enact fnn R API support for false nearest neighbours method (#512).

• Integrate R API and vignette for geographical cross mapping cardinality (#455).

• Provide R-level API and vignette for spatial causality test (#403).

enhancements

• Enable custom legend texts and colors in gccm S4 generic (#535).

• Reduce computational load in vignettes (#476).

• Document overall structure and usage of spEDM in a dedicated vignette (#415).

• Create SSR vignette for spatial cross-sectional data state-space reconstruction (#412).

• Include references for algorithms in spEDM (#367).

breaking changes

• Use non-NA spatial units for lib/pred by default (#499).

• Refine internal case data (#348).

bug fixes

• Patch memory error caused by mismatch between C++ (0-based) and R (1-based) indexing (#480).

• Fix error from non-matrix input in grid-type handling due to R matrix slicing (#474).

- C++
Published by SpatLyu 10 months ago

spEDM - spEDM 1.5

new

• Enable parallel.level parameter to specify parallel granularity in gccm R API (#310).

• Implement the multiview function for multiview embedding forecasting (MVE) method (#221).

enhancements

• Integrate lib parameter in gccm R API for library units selection (#278).

• Set the default k to E+2 in the gccm R API (#261).

• Eliminate redundant computations at the source C++ code level (#233).

• Add trend.rm option in the R API for embedded, simplex, and smap methods to align with gccm behavior (#191).

• Refactor indexing of lag values and embedding vector generation for spatial lattice (#186,#184) and grid data (#183,#181).

• Centered around example cases in the gccm vignette (#170).

breaking changes

• Default plotting method places the legend in the top-left corner of the plot now (#325).

• Refine simplex & smap output on the R side (#263).

bug fixes

• Fix bug in R functions embedded, simplex, smap when input data contains only one attribute column (#246).

- C++
Published by SpatLyu 12 months ago

spEDM - spEDM 1.4

enhancements

• Improve default spatial neighbor list generation for lattice data with support from the sdsfun package (#159).

breaking changes

• Adjust the behavior of the tau parameter in the C++ source code and update the R side API (#154).

- C++
Published by SpatLyu about 1 year ago

spEDM - spEDM 1.3

• Implement the smap funtion to enable the selection of the optimal theta parameter (#128).

• Now bidirectional mapping in the gccm result uses a full join structure when organized on the R side (#118).

• Support for calculating unidirectional mappings in the gccm function (#117).

• Relax gccm C++ source code libsizes minimum value constraint of E+2 (#109).

• Include an option in gccm to determine whether to include the current state when generating embedding vectors (#103).

• Provide a complete GCCM workflow for spatial lattice and grid data in the gccm vignette (#100).

• Add simplex function to support selecting the optimal embedding dimension for variables (#98).

• Provide an R-level API for generating embeddings (#97).

• Support testing causal links in GCCM with different E and k for cause and effect variables (#96).

• Add thread settings for gccm (#94).

• Resolve r crash caused by invalid E #90 and k #89 parameter settings in gccm.

• Fix incorrect Pearson correlation calculation in C++ code when input contains NA (#83).

• Add S-maps cross-prediction support to gccm (#81).

- C++
Published by SpatLyu about 1 year ago

spEDM - spEDM 1.2

• Encapsulate the gccm function using the S4 class (#72).

• Add options for tau, k, and progressbar in gccm (#69).

• Add print and plot s3 methods for gccm result (#64).

• Require sdsfun package version 0.7.0 or higher (#61).

- C++
Published by SpatLyu about 1 year ago

spEDM - spEDM 1.1

• Resolve CRAN autocheck issues, no significant API changes.

- C++
Published by SpatLyu about 1 year ago

spEDM - spEDM 1.0

• Implementing the GCCM method for spatial lattice and grid data using pure C++11.

- C++
Published by SpatLyu about 1 year ago