Fang                    Human embryo gene expression dataset from Fang
                        et al. (2010)
Golub                   Leukemia gene expression dataset from Golub et
                        al. (1999)
Xiang                   Arabidopsis embryo gene expression dataset from
                        Xiang et al. (2011)
sBMH                    Function to identify the best-matching
                        hexagons/rectangles for the input data
sCompReorder            Function to reorder component planes
sDistance               Function to compute the pairwise distance for a
                        given data matrix
sDmat                   Function to calculate distance matrix in
                        high-dimensional input space but according to
                        neighborhood relationships in 2D output space
sDmatCluster            Function to partition a grid map into clusters
sDmatMinima             Function to identify local minima (in 2D output
                        space) of distance matrix (in high-dimensional
                        input space)
sHexDist                Function to calculate distances between
                        hexagons/rectangles in a 2D grid
sHexGrid                Function to define a supra-hexagonal grid
sInitial                Function to initialise a sInit object given a
                        topology and input data
sMapOverlay             Function to overlay additional data onto the
                        trained map for viewing the distribution of
                        that additional data
sNeighAny               Function to calculate any neighbors for each
                        hexagon/rectangle in a grid
sNeighDirect            Function to calculate direct neighbors for each
                        hexagon/rectangle in a grid
sPipeline               Function to setup the pipeline for completing
                        ab initio training given the input data
sTopology               Function to define the topology of a map grid
sTrainBatch             Function to implement training via batch
                        algorithm
sTrainSeq               Function to implement training via sequential
                        algorithm
sTrainology             Function to define trainology (training
                        environment)
sWriteData              Function to write out the best-matching
                        hexagons and/or cluster bases in terms of data
visColoralpha           Function to add transparent (alpha) into colors
visColorbar             Function to define a colorbar
visColormap             Function to define a colormap
visCompReorder          Function to visualise multiple component planes
                        reorded within a sheet-shape rectangle grid
visDmatCluster          Function to visualise clusters/bases
                        partitioned from a supra-hexagonal grid
visDmatHeatmap          Function to visualise gene clusters/bases
                        partitioned from a supra-hexagonal grid using
                        heatmap
visHeatmap              Function to visualise input data matrix using
                        heatmap
visHeatmapAdv           Function to visualise input data matrix using
                        advanced heatmap
visHexComp              Function to visualise a component plane of a
                        supra-hexagonal grid
visHexGrid              Function to visualise a supra-hexagonal grid
visHexMapping           Function to visualise various mapping items
                        within a supra-hexagonal grid
visHexMulComp           Function to visualise multiple component planes
                        of a supra-hexagonal grid
visHexPattern           Function to visualise codebook matrix or input
                        patterns within a supra-hexagonal grid
visKernels              Function to visualize neighborhood kernels
visTreeBootstrap        Function to build and visualise the
                        bootstrapped tree
visVp                   Function to create viewports for multiple
                        supra-hexagonal grids
