source: trunk/GDEHELP/HELP_WRITTEN/fasttree.help

Last change on this file was 19532, checked in by westram, 6 weeks ago
  • reintegrates 'help' into 'trunk'
    • tweak arb documentation:
      • automatically link
        • ticket references to arb bug tracker (only affects html version).
        • found URLs.
      • page titles
        • warn about long titles.
        • introduce SUBTITLEs (automatically triggered by multi-line titles in source files).
        • increase allowed length (limited by subwindow width).
      • cleanup header sections in all helpfiles.
      • fix and/or update several help files.
      • document syntax of help sources.
      • build issues:
        • when xml validation fails, next build no longer uses invalid xml ⇒ keeps failing.
        • remove output files on error (including files below ARBHOME/lib).
        • pipe output through logs to ensure proper wrapping in Entering/Leaving lines.
    • moves Tree admin + NDS menu entries to top of menu
  • adds: log:branches/help@18783:19531
File size: 1.2 KB
Line 
1Fasttree
2
3DESCRIPTION
4
5    FastTree infers approximately-maximum-likelihood phylogenetic trees from
6    alignments of nucleotide or protein sequences. FastTree can handle alignments
7    with up to a million of sequences in a reasonable amount of time and memory.
8    For large alignments, FastTree is 100-1,000 times faster than PhyML 3.0 or RAxML 7.
9
10    FastTree is more accurate than PhyML 3 with default settings, and much more accurate
11    than the distance-matrix methods that are traditionally used for large alignments.
12    FastTree uses the Jukes-Cantor or generalized time-reversible (GTR) models of
13    nucleotide evolution and the JTT (Jones-Taylor-Thornton 1992), WAG (Whelan & Goldman 2001),
14    or LG (Le and Gascuel 2008) models of amino acid evolution.
15    To account for the varying rates of evolution across sites,
16    FastTree uses a single rate for each site (the "CAT" approximation).
17    To quickly estimate the reliability of each split in the tree, FastTree computes
18    local support values with the Shimodaira-Hasegawa test (these are the
19    same as PhyML 3's "SH-like local supports").
20
21VERSION
22
23    Currently Version 2.1.11 is delivered with arb.
24
25DETAILS
26
27    For details please refer to http://www.microbesonline.org/fasttree/
28
Note: See TracBrowser for help on using the repository browser.