Multivariate Multiscale Spatial Analysis
Construct a site-by-edge binary matrix
Construct asymmetric eigenvector maps (AEM)
AEM for time series
Weight edges when constructing AEM variables
Decompose D in replacement and richness difference components
Beta diversity computed as Var(Y)
Function to choose a connection network
Class For Constrained Hiereachical Clustering
Space- And Time-Constrained Clustering
Contingency periodogram
Combine dbMEM matrices corresponding to groups of sites
dbMEM spatial eigenfunctions
Directional indices of community change
Dissimilarity matrices for community composition data
Perform a test of the shared space-environment fraction of a variation...
Parametric forward selection of explanatory variables in regression an...
Forward selection with multivariate Y using permutation under reducel ...
Geodetic Distances from Latitude and Longitude
Geodetic Coordinates from Latitude and Longitude
Compute the maximum distance of the minimum spanning tree based on a d...
Global and local tests
Compute LCBD from any D matrix
Function to create a list of spatial weighting matrices
Interactive tool to generate R code that creates a spatial weighting m...
Function to optimize the selection of a spatial weighting matrix and s...
Function to compute and manage Moran's Eigenvector Maps (MEM) of a lis...
Selection of the best subset of spatial eigenvectors (MEM, Moran's Eig...
Multi-frequential periodogram analysis
Function to compute extreme values of Moran's I
Function to compute Moran's index of spatial autocorrelation
Function to compute positive and negative parts of Moran's index of sp...
Multi-Scale Pattern Analysis
Moran spectral randomization for fourth-corner analysis
Moran spectral randomization for Mantel test
Moran spectral randomization
Moran spectral randomization for variation partitioning
Function to compute neighborhood based on the minimum spanning tree
Multivariate spatial analysis
Compute AIC for models with orthonormal explanatory variables
Function to compute polynomial of geographical coordinates
Plotting Method For Space- And Time-Constrained Clustering
Function to display Moran's Eigenvector Maps (MEM) and other spatial o...
Plots of the outputs of a temporal beta diversity analysis
Rotate a set of point by a certain angle
Function to compute a scalogram
Space-time interaction in ANOVA without replication
TBI: Difference between multivariate observations at T1 and T2
Function to compute and test eigenvectors of spatial weighting matrice...
Paired t-tests of differences between T1 and T2 for each species
Permutational paired t-test
Function to compute multivariate empirical variogram
Whittaker-Robinson periodogram
Tools for the multiscale spatial analysis of multivariate data. Several methods are based on the use of a spatial weighting matrix and its eigenvector decomposition (Moran's Eigenvectors Maps, MEM). Several approaches are described in the review Dray et al (2012) <doi:10.1890/11-1183.1>.
Useful links