| 1 | # main topics: |
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| 2 | UP arb.hlp |
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| 3 | UP glossary.hlp |
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| 4 | UP mode.hlp |
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| 5 | |
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| 6 | # sub topics: |
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| 7 | #SUB subtopic.hlp |
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| 8 | |
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| 9 | # format described in ../help.readme |
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| 10 | |
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| 11 | |
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| 12 | TITLE LENGTH and MULTIFURC MODE |
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| 13 | |
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| 14 | OCCURRENCE ARB_NT <button in the left column> |
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| 15 | |
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| 16 | DESCRIPTION Both modes described here allow you to increase or reduce the length of |
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| 17 | terminal and internal branches. |
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| 18 | |
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| 19 | Click on the eleventh resp. twelfth button in the left column of |
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| 20 | the 'ARB_NT' window to activate the 'LENGTH MODE' resp. 'MULTIFURC MODE'. |
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| 21 | |
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| 22 | Change branch length: |
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| 23 | |
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| 24 | Click and drag a branch to change its length. |
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| 25 | |
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| 26 | If you use the right mouse button, discrete values |
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| 27 | will be used for the length. |
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| 28 | |
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| 29 | Set branch length to zero: |
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| 30 | |
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| 31 | Point to a branch with the mouse and hit the key '0' (zero). |
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| 32 | |
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| 33 | SECTION Differences between LENGTH- and MULTIFURC-MODES |
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| 34 | |
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| 35 | The LENGTH MODE simply changes the length of the targeted branch. |
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| 36 | |
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| 37 | The MULTIFURC-MODE changes the length of the targeted branch as well, but |
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| 38 | also distributes its length-change to its direct (non-zero-length) |
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| 39 | neighbour-branches. |
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| 40 | Distribution is based on the same algorithm as LINK{multifurcate.hlp}. |
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| 41 | |
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| 42 | NOTES To multifurcate explicit single branches, you may as well focus the tree-display, |
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| 43 | move the mouse pointer to the bootstrap value of the branch to eliminate and then |
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| 44 | press '0' to actually eliminate the branch. |
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| 45 | |
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| 46 | Increasing the length of a branch in MULTIFURC-MODE may cause neighbour branches |
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| 47 | to become multifurcations. This is irreversible, i.e. reducing the length back |
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| 48 | to the original value will not "un-multifurcate" the affected branches. |
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| 49 | |
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| 50 | In both modes it is possible to set branchlengths to negative values if expert-mode |
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| 51 | is enabled. |
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| 52 | |
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| 53 | EXAMPLE None |
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| 54 | |
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| 55 | WARNINGS In MULTIFURC MODE you may not expect to undo all length distributions, by |
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| 56 | scaling the branchlength back to the original value it had before a previous |
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| 57 | scale operation! |
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| 58 | |
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| 59 | BUGS unknown |
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