I'm going through the FMT tutorial using only 1% subsample data (dont have enough power for 10%) and have gotten stuck on the first question asking:
Do samples differ in composition by subject-id (i.e., across individual)?
To do this i thought id run a beta diversity analysis - beta-group-significance analysis on the unweighted_unifrac_distance_matrix.qza
here is the code i ran
qiime diversity beta-group-significance \
--i-distance-matrix core-metrics-results/unweighted_unifrac_distance_matrix.qza \
--m-metadata-file sample-metadata.tsv \
--m-metadata-column subject-id \
--o-visualization core-metrics-results/unweighted-unifrac-body-site-significance.qzv \
--p-pairwise
however i keep getting an error
All values in the grouping vector are unique. This method cannot operate on a grouping vector with only unique values (e.g., there are no 'within' distances because each group of objects contains only a single object)
- also included a screenshot of the error message
fmt tutorial 1a error message
|690x126
heres a link to the metadata file https://data.qiime2.org/2020.2/tutorials/fmt/sample_metadata.tsv
would appreciate any feedback - i'm a total noob btw
Thanks!
Qiime2020.2 on VirtualBox