Morphometrics data essentially consist of coordinates and, if any, associated covariates.
Existing morphometrics, eg .tps, .nts, .xml, etc. are not fully generic and/or explicitely defined/consistent, etc.
I propose here the .mod (short for Modown) file format along with R utilities.
Just like markdown, Modown has minimalist syntax and is easy to read/manipulate/write both for humans and machines.
Modown name is derived from markdown, sounds a bit like Momocs and is a tribute to Motown.
.mod files are plain text files whose single line syntax fall within one of the five following rules:
- space-separated numbers stand for coordinates or other numeric data in each dimension: eg
-0.5 0.5;0 0 0 - word and word/number include a covariate name and its value: eg
size 3.14;sp H. sapiens - single word introduces a partition of coordinates: eg
polygon;points - tilde (and word) separate (and name) several individuals in the same file: eg
~;~iris150 - anything else is ignored: eg
#a comment
A single shape with one covariate:
name brahma
type beer
37 561
40 540
40 529
[...]
Two shapes with more covariates/cofactors:
~0001-cAglan_O10VD
var Aglan
domes cult
view VD
ind O10
-0.5000 0.00000
-0.4967 0.01035
-0.4935 0.02414
[...]
~0001-cAglan_O10VL
var Aglan
domes cult
view VL
ind O10
-0.5000 0.00000
-0.4995 0.01018
-0.4957 0.02022
[...]
A single shape with landmarks and 2 partitions of semi-landmarks:
id 571
taxa T. mono
ldk
697 977
766 991
704 1046
[...]
sl1
541 962
542 965
543 967
[...]
sl2
541 949
542 952
542 954
[...]
A shape with nothing else but coordinates:
200 91
187 95
173 105
[...]
Examples adapted from Momocs: bot[1], olea[1], charring[1], shapes[1].
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