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In the B+ tree, the internal nodes do not store any pointers to records, thus all pointers to records are stored in the leaf nodes. In addition, a leaf node may include a pointer to the next leaf node to speed up sequential access. [2] Because B+ tree internal nodes have fewer pointers, each node can hold more keys, causing the tree to be ...
Javascript tree viewer for Beast CeCILL: ETE toolkit Tree Viewer [2] an online tool for phylogenetic tree view (newick format) that allows multiple sequence alignments to be shown together with the trees (fasta format) EvolView [3] an online tool for visualizing, annotating and managing phylogenetic trees IcyTree [4]
A B+ tree is an m-ary tree with a variable but often large number of children per node. A B+ tree consists of a root, internal nodes and leaves. [ 1 ] The root may be either a leaf or a node with two or more children.
Reads a tree from a tree file, and a data set with continuous characters data, and emits the independent contrasts for those characters, for use in any multivariate statistics package gendist Genetic distance program which computes one of three different genetic distance formulas from gene frequency data
Fast ML tree reconstruction, bootstrap analysis, model selection, hypothesis testing, tree calibration, tree manipulation and visualization, computation of sitewise rates, sequence simulation, many models of evolution (DNA, protein, rRNA, mixed protein, user-definable), GUI and scripting language: Maximum likelihood, distances, and others
Tree calculation tool calculates phylogenetic tree using BioJava API and lets user draw trees using Archaeopteryx: Software is package of 7 interactive visual tools for multiple sequence alignments. Major focus is manipulating large alignments. Includes MSApad, MSA comparator, MSA reconstruction tool, FASTA generator and MSA ID matrix calculator
The NEXUS format also allows the storage of data that can facilitate analyses, such as sets of characters or taxa. Many popular phylogenetic programs, including PAUP*, [2] MrBayes, [3] Mesquite, [4] MacClade, [5] and SplitsTree, [6] use this format. Nexus file names typically have the extension .nxs or .nex.
The B+ tree is a structure for indexing single-dimensional data. In order to adopt the B+ tree as a moving object index, the B x-tree uses a linearization technique which helps to integrate objects' location at time t into single dimensional value. Specifically, objects are first partitioned according to their update time.