Violation of SWC spec in at least three files

Technical
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1

The SWC spec here requires that “Parent samples must be defined before they are being referred to.”
https://neuroinformatics.nl/swcPlus/
The SWC spec described here requires that “Parent samples should appear before any child samples”
http://www.neuronland.org/NLMorphologyConverter/MorphologyFormats/SWC/Spec.html

In these three SWC files:

this requirement is violated.
The first one, if you open the associated SWC file in a text editor, reads

#name
#comment
##n,type,x,y,z,radius,parent
1 1 389.2185 749.32 19.6823 6.9945 -1
2 2 397.8924 754.8432 20.3437 0.1144 3
3 2 396.7712 754.7815 20.1214 0.1144 4
4 2 395.6867 754.4794 19.9651 0.1151 5

The last number in each line should be strictly less than the first number in each line. In other words, the graph should be topologically sorted.

2

@patrick-nicodemus thanks for finding these cells. We’ll get them updated on the website, in the meantime I can send the files via email if you’d like to provide your address.

-Rachel

3

@racheld
Thank you very much. I was able to write a topological sorting algorithm to relabel the indices for my needs, so I do not need the files at this time.
I was only looking at the mouse cells, I did not check any human cells.