Nevin

Overview

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Format specification:     

Encoding:  ASCII text
Limitations: Binary trees only.

Files generally start with a comment (C-style /* ... */)

Other non-empty lines each represent a single neuron sample point with six data items.


1
 2
 3
 4
 5
 6
Sample number
 Point Type
 x position
 y position
 z position
 diameter
Generally contiguous, starting from '1',
but is not required to be,.
 Single character -
S - Soma
B - Branch
C - Continuous
T, E - Terminal
P - Primary
f -
c -
'x', 'y', 'z' are spatial co-ordinates, given in micrometers.
'diameter' is dendrite thickness, also given in micrometers.


Note that sample connectivity is implicit in the data - after a termination point (T), the next point in the data is connected to the first incomplete binary branch point encountered when ascending the tree hierarchy.

Usage of tags when representing the soma is inconistent between files - sometimes a T is used, other times no.


References

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Links

See the specification given for this format in the NTSCable documentation -   http://cns.iaf.cnrs-gif.fr/files/ntscable_2.0.doc


Examples

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